Patents Assigned to Doosan Heavy Industries & Construction Co., Ltd.
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Patent number: 9951871Abstract: A brush seal assembly may seal a gap between a diaphragm and a rotor of a turbine. The brush seal assembly includes a brush, one end of which is inserted in a rotor facing surface of a diaphragm while the other end thereof protrudes toward a rotor, and a support strip spaced apart from one side of the brush so that one side end portion of the support strip is fixed and the other side end portion thereof supports one side of the brush.Type: GrantFiled: June 17, 2015Date of Patent: April 24, 2018Assignee: DOOSAN Heavy Industries Construction CO., LTD.Inventors: Mahmut Faruk Aksit, Dan Hasnedl
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Patent number: 9951687Abstract: Disclosed herein is a gas turbine with a plurality of tie rods. The gas turbine includes a compressor section having a plurality of compressor-side rotor disks, a turbine section having a plurality of turbine-side rotor disks arranged downstream of the compressor-side rotor disks, a first tie rod penetrating central portions of the rotor disks provided in the compressor section to press the compressor-side rotor disks against each other, a plurality of second tie rods penetrating vicinities of edges of the rotor disks provided in the turbine section to press the turbine-side rotor disks against each other, and a torque transfer member coupled to the first and second tie rods so as to transfer rotational torque generated by the turbine section to the compressor section.Type: GrantFiled: July 14, 2015Date of Patent: April 24, 2018Assignee: Doosan Heavy Industries Construction Co., Ltd.Inventor: Sang Eon Lee
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Patent number: 9933755Abstract: Example embodiments relate to a response time measurement apparatus, a response time measurement system and a response time measurement method for measuring a response output time from a facility corresponding to an input signal, and more particularly, a response time measurement apparatus, a response time measurement system and a response time measurement method in which the output display of a facility is captured through a capture device to detect an output time on the basis thereof.Type: GrantFiled: September 5, 2014Date of Patent: April 3, 2018Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventor: Sam Won Lee
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Patent number: 9926814Abstract: A supercritical CO2 generation system including a compressor configured to compress a working fluid; a first heat exchanger that exchanges heat with the working fluid passing through the compressor; a high temperature turbine that expands the working fluid passing through the first heat exchanger and connects to a power generator to produce power; a second heat exchanger that exchanges heat with the working fluid passing through the compressor; a low temperature turbine that expand the working fluid passing through the second heat exchanger and connects to the power generator to produce power; a third heat exchanger between the first heat exchanger and the high temperature turbine that exchanges heat with the working fluid recuperated by the first heat exchanger; and a cooler that cools the working fluid passing through the high temperature turbine and the low temperature turbine and supplies the cooled working fluid to the compressor.Type: GrantFiled: January 21, 2016Date of Patent: March 27, 2018Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventors: Chul Woo Roh, Sung Gju Kang, Jeong Ho Hwang
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Patent number: 9899109Abstract: Disclosed herein are a treatment apparatus and method for a waste steam generator, and an installation method of a treatment apparatus for a waste steam generator. The treatment apparatus includes a cutting part for cutting a body of a waste steam generator, a driving part for driving the cutting part, and a support frame for supporting the cutting part and the driving part, wherein the support frame is coupled to an outer peripheral surface of the body of the waste steam generator in a divided state, and the cutting part is driven and cuts the body in a state in which the support frame is coupled to the outer peripheral surface of the body. Consequently, since the treatment apparatus is easily moved and installed, an installation time of the treatment apparatus may be shortened and an exposure time of a worker can be reduced.Type: GrantFiled: July 29, 2015Date of Patent: February 20, 2018Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventors: Kwang Soo Park, Kwang Yong Park, Seon Ho Lee
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Patent number: 9890809Abstract: A tilting pad thrust bearing and a tilting pad thrust bearing assembly are provided. The tilting pad thrust bearing is configured such that when a load is concentrated on only a portion of a thrust bearing because of eccentricity or inclination of a rotating shaft, associated tilting pads are tilted so that the load can be dispersed to the other tilting pads to which comparatively small load is applied, whereby the tilting pads to which the concentrated load is applied can be prevented from being damaged. Furthermore, the tilting pads can be fixed by oil supply nozzles without using a separate fastening member, whereby the size of the tilting pad thrust bearing can be markedly reduced. The tilting pads and a plate have improved structures so that the time and cost required to manufacture the tilting pad thrust bearing or tilting pad thrust bearing assembly can be reduced.Type: GrantFiled: December 22, 2015Date of Patent: February 13, 2018Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventor: Kyung Bo Bang
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Patent number: 9884295Abstract: The present invention relates to membrane bioreactor (“MBR”) system that includes a mechanical membrane reciprocation system to reduce or eliminate membrane fouling. The disclosed MBR system can be operated with higher flux and lower fouling than MBR systems using air scouring. Furthermore the system can remove nitrogen and phosphorous with one RAS and one or no internal recirculation line. The membrane can be reciprocated by a low RPM motor connected to a pulley via belt to rotate rotor to convert rotational motion into reciprocating motion of membrane. Various mechanical means can also be employed to create the reciprocating motion.Type: GrantFiled: April 30, 2013Date of Patent: February 6, 2018Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventors: Jaeho Ho, Shaleena Smith, Gyu Dong Kim, Jaren Patamasank, Petia Tontcheva, Hyung Keun Roh
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Patent number: 9878270Abstract: A high-rate sedimentation tank includes a hopper configured to be supplied with raw water including floc, at least one circular orifice pipe disposed at a lower portion of the hopper and configured to have the floc deposited therein as a sludge while passing the floc included in the raw water therethrough, and a sludge outlet configured to discharge the sludge deposited by passing through the circular orifice pipe to an outside of the hopper.Type: GrantFiled: February 2, 2016Date of Patent: January 30, 2018Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventors: Jine Hee Min, Chul Woo Lee, Youngjun Ro
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Publication number: 20180019029Abstract: A system for simulating maintenance of a reactor core protection system that has at least two or more channels, includes: a simulation signal generation unit for generating a simulation state signal including a normal state or an abnormal state, a communication unit connected to each of the channels of the reactor core protection system to transmit the state signal to the channel, and a control unit for receiving a result signal output from the channel in response to the input simulation state signal and confirming whether the reactor core protection system normally determines a reactor core state by analyzing the result signal.Type: ApplicationFiled: June 8, 2017Publication date: January 18, 2018Applicant: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventors: Changhun KANG, Baegyo JO, Sanghoon LEE
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Publication number: 20170363072Abstract: Disclosed herein is a vibration monitoring and diagnosing system for monitoring conditions of a wind power generator and diagnosing a defective portion thereof using vibration characteristics obtained from acceleration sensors mounted to the wind power generator. A vibration-based defect detecting method may include: collecting vibration data of the wind power generator using the plurality of sensors; extracting a first characteristic value of a time domain based on the vibration data; extracting characteristic values in one or more frequency bands for a location of each sensor in a frequency domain or an envelope frequency domain if the first characteristic value is greater than a preset alarm setting value; and determining that a defect is present when at least one characteristic value of the characteristic values is greater than a preset normal value.Type: ApplicationFiled: June 9, 2017Publication date: December 21, 2017Applicant: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventors: Jong Duk SON, Jeong Hoon LEE, Ki Hak LEE, Seung Man EOM
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Patent number: 9847147Abstract: Disclosed herein is an articulated manipulator capable of moving a tool such as an inspection device, a processing device, or a welding device to a desired position for inspection or repair of a defect portion in a limited place. The articulated manipulator includes a base plate, a movable unit slidably coupled on the base plate, a rotatable unit rotatably coupled on the movable unit, and a rotation unit rotatably coupled to one side of the rotatable unit.Type: GrantFiled: January 20, 2015Date of Patent: December 19, 2017Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventors: Kwang Yong Park, Jin Gwi Byeon, Seon Ho Lee
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Patent number: 9839918Abstract: Disclosed herein is a flocculation basin inclusion ion type water treatment apparatus using dissolved air floatation which includes: a flocculation basin which forms flocs by mixing a coagulant inserted into feed water and grows up the flocs; a contact zone to which fine bubbles are induced through a nozzle disposed at a lower part; and a separation zone which removes the flocs when the fine bubbles are attached to the flocs and the flocs float on the surface of water, the flocculation basin inclusion type water treatment apparatus including: a fine bubble forming part configured to separate a portion of the feed water at an upstream side of the flocculation basin by piping, configured to form saturated water using the separated portion of the feed water and configured to supply the saturated water to the nozzle.Type: GrantFiled: April 6, 2015Date of Patent: December 12, 2017Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventors: Sung Won Park, Byung Sung Park
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Publication number: 20170350370Abstract: A wind farm supervision monitoring method includes: displaying, by a user interface (UI) unit, a location of the site server on a map along with a dashboard menu, a navigation menu, and an alarm & event menu; collecting, by a data collection unit, data about status monitoring of each wind turbine from the site server; detecting, by an abnormality status detection unit, an abnormality status of each wind turbine based on the data about the status monitoring of each wind turbine and issuing an alarm based on the detecting the abnormality status; providing, by a supervision unit, a turbine operation status of each wind turbine using the dashboard menu, managing operation and maintenance; and establishing, by the supervision unit, an operation and maintenance plan for the detected abnormality status of the wind turbine.Type: ApplicationFiled: February 14, 2017Publication date: December 7, 2017Applicant: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventors: Jong duk SON, Jeong Hoon LEE, Sung Tae KIM, Seung Man EOM
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Publication number: 20170352010Abstract: A wind farm supervision monitoring system includes: a data collection unit configured to collect data about a status monitoring of each wind turbine from at least one site server; an abnormality status detection unit configured to detect an abnormality status of each wind turbine based on the collected data about the status monitoring and issue an alarm; a wind data management unit configured to early detect a fault of each wind turbine and or monitor performance of each wind turbine based on the data about the status monitoring or the data about the abnormality status; and a supervision unit configured to manage a turbine operation status and operation and maintenance of each wind turbine and provide information for establishing an operation and maintenance plan for the detected abnormality status of the wind turbine.Type: ApplicationFiled: December 20, 2016Publication date: December 7, 2017Applicant: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventors: Jong Duk SON, Seung Man EOM, Jeong Hoon LEE
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Patent number: 9835253Abstract: A brush seal assembly may include: a packing body configured to be positioned between a rotating body and a fixing body and provided with an insertion groove; a brush seal part configured to include a brush extending toward the rotating body in a state in which one end of the brush seal part is inserted into the insertion groove and a support member supporting the brush; a thermal expansion member configured to adhere to a side of the support member and be thermally expanded in a circumferential direction of the packing body; and a fixing member configured to be fitted in the insertion groove to face the thermal expansion member to simultaneously fix the brush seal part in the circumferential direction and a radial direction of the packing body.Type: GrantFiled: June 8, 2015Date of Patent: December 5, 2017Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventor: Mahmut Faruk Aksit
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Patent number: 9833741Abstract: Provided is a reciprocating submerged membrane filtration apparatus including: a membrane tank comprising a submerged membrane and configured to intake influent wastewater to be treated, the influent wastewater being filtered through the submerged membrane to produce treated water; and a reciprocation apparatus configured to move the membrane to create an inertia force which shakes foulants off from the submerged membrane under oxygen-deficient conditions, wherein the submerged membrane comprises a microfiltration (MF) membrane or an ultrafiltration (UF) membrane.Type: GrantFiled: August 24, 2015Date of Patent: December 5, 2017Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTIONS CO., LTD.Inventors: Hyung Keun Roh, Jaeho Ho
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Patent number: 9812910Abstract: Provided is a method for mounting a stator core on a generator, the generator having key bars and spring bars disposed between the key bars and a frame body, the method including pre-laminating stator core sheets to form a stator core bundle in a given unit; conveying the stator core bundle laminated in the given unit; and mounting the stator core bundle on the inner peripheral surface of the frame body.Type: GrantFiled: January 8, 2015Date of Patent: November 7, 2017Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventors: Sang Man Lee, Se Wook Oh, Mooseok Kwak
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Patent number: 9808810Abstract: A nozzle for a dissolved air flotation system includes a housing, a nozzle connector, and a nozzle body. The housing has an inlet formed at one side and an outlet formed at another side. The nozzle connector couples to the inlet and has an inflow path formed in a longitudinal direction. The nozzle body is disposed in the housing, and includes: a collision portion formed at a first end portion of the nozzle body such that a fluid introduced along the inflow path of the nozzle connector 10 changes its flow direction and collides with an inner wall of a side portion of the housing, a plurality of faces formed at sides of the nozzle body, a plurality of side paths defined between the faces and the inner wall of the housing, and a spurt hole defined at a second end portion of the nozzle body.Type: GrantFiled: November 11, 2014Date of Patent: November 7, 2017Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventors: Sung Won Park, Yong Hae Park, Seon Jae You, Byung Sung Park
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Patent number: 9810073Abstract: A turbine blade includes a cooling channel through which cooling air is passed, and a swirl portion provided at an entrance of the cooling channel so as to form a swirl flow in the cooling air. The turbine blade may increase cooling performance of a root unit, improve the stiffness of the root unit, and increase the internal heat transfer efficiency of a blade unit.Type: GrantFiled: December 15, 2014Date of Patent: November 7, 2017Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION Co., LTDInventor: Sung Chul Jung
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Patent number: 9803504Abstract: A steam turbine includes a boiler unit, first supply pipes, a second supply pipe, a plurality of valve units, a drain valve unit, and a controller. The controller is configured to control, before rotation of the turbine starts, an operation time and temperature of the auxiliary boiler so that the temperatures of the high-pressure turbine and the intermediate-pressure turbine are increased to the first setting temperature. The controller is configured to control, when the temperatures of the high-pressure turbine and the intermediate-pressure turbine are maintained at the first setting temperature, operation of the main boiler such that the temperature of the intermediate-pressure turbine reaches a second setting temperature while operation of the auxiliary boiler is interrupted, and control, when the temperature of the intermediate-pressure turbine is maintained at the second setting temperature, the operation of the main boiler such that steam is supplied only to the high-pressure turbine.Type: GrantFiled: March 24, 2016Date of Patent: October 31, 2017Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventor: Luke Park