Patents Assigned to BHI CO., LTD.
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Patent number: 9624584Abstract: Provided are an enamel coating method and apparatus. The enamel coating method includes (a) preprocessing a surface of the metal tube by feeding the metal tube into a preprocessing chamber by an in-feed conveyor; (b) coating the surface of the metal tube with an enamel glaze supplied from an enamel glaze supply nozzle provided inside a coating chamber by feeding the preprocessed metal tube into the coating chamber; and (c) firing the coated metal tube by feeding the coated metal tube into a firing chamber, wherein the (b) coating includes spraying air toward the metal tube by an air spray nozzle provided inside the coating chamber.Type: GrantFiled: June 10, 2014Date of Patent: April 18, 2017Assignee: BHI CO., LTD.Inventor: Jong Inn Woo
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Patent number: 9328424Abstract: Provided are an enamel coating method and apparatus. The enamel coating method includes (a) preprocessing a surface of a conductive coating object by feeding the coating object into a preprocessing chamber by an in-feed conveyor, (b) coating the surface of the coating object with an enamel glaze supplied from an enamel glaze supply nozzle provided inside a coating chamber by feeding the preprocessed coating object into the coating chamber, and (c) firing the coated coating object by feeding the coated coating object into a firing chamber, wherein the firing chamber in the (c) firing includes a firing chamber conveyor having at least two transport rollers, and the firing chamber conveyor transports the coating object to an output conveyor while supporting a lower side of the coating object by the at least two transport rollers.Type: GrantFiled: June 10, 2014Date of Patent: May 3, 2016Assignee: BHI Co., Ltd.Inventor: Jong Inn Woo
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Patent number: 8663469Abstract: A strainer wall structure includes curved sections, a method of manufacturing the same, and a filtering method using the strainer wall structure to provide a substantially larger effective filtering area in the same length and width, substantially reducing foreign substances covering a suction surface and flow resistance of the foreign substances, and reducing pressure drop at a cooling water pass corresponding thereto. The strainer wall structure includes an inlet side through which cooling water is introduced and an outlet side through which the filtered cooling water is discharged, includes a body having openings in directions of the inlet side and the outlet side, and a first filter plate inserted into the body and including curved sections formed by alternately bending a first punched plate having filtering holes in opposite directions and at a predetermined interval.Type: GrantFiled: September 3, 2010Date of Patent: March 4, 2014Assignees: Korea Hydro & Nuclear Power Co., Ltd., BHI Co., Ltd.Inventors: Sang Yeol Kim, Hyeong Teak Kim, Chang Hyun Kim, Sang Won Lee, Jong In Woo
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Patent number: 8475659Abstract: A strainer wall structure that removes foreign substances from a fluid suctioned into a pipe and a re-circulation pump that is part of an emergency core cooling system (ECCS). The strainer wall structure has an inlet side and an outlet side through which cooling water is introduced and discharged, respectively, and includes a body having an opening in a direction of the inlet side, closed side surfaces, and an outlet port disposed at one of the closed side surfaces. The strainer includes a punched plate filter screen inserted into the opening. A modular cassette apparatus including grooved first filter plates is inserted into the body, and second filter plates having second grooves is inserted into the first grooves.Type: GrantFiled: August 17, 2010Date of Patent: July 2, 2013Assignees: Korea Hydro & Nuclear Power Co., Ltd., BHI Co., Ltd.Inventors: Seung Jong Oh, Sang Yeol Kim, Hyeong Teak Kim, Chang Hyun Kim, Sang Won Lee, Jong In Woo
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Publication number: 20120037572Abstract: A strainer wall structure includes curved sections, a method of manufacturing the same, and a filtering method using the strainer wall structure to provide a substantially larger effective filtering area in the same length and width, substantially reducing foreign substances covering a suction surface and flow resistance of the foreign substances, and reducing pressure drop at a cooling water pass corresponding thereto. The strainer wall structure includes an inlet side through which cooling water is introduced and an outlet side through which the filtered cooling water is discharged, includes a body having openings in directions of the inlet side and the outlet side, and a first filter plate inserted into the body and including curved sections formed by alternately bending a first punched plate having filtering holes in opposite directions and at a predetermined interval.Type: ApplicationFiled: September 3, 2010Publication date: February 16, 2012Applicants: BHI CO., LTD., KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Sang-Yeol Kim, Hyeong Teak Kim, Chang-Hyun Kim, Sang Won Lee, Jong In Woo
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Publication number: 20120037559Abstract: A strainer filtering apparatus including a filtering tube providing a substantially larger effective filtering area for its length and width, substantially reducing foreign substances covering a suction surface and flow resistance of the foreign substances, and reducing pressure drop at a cooling water passage. The strainer filtering apparatus includes at least one inlet side into which cooling water is introduced and an outlet side through which the cooling water is discharged, hollow filtering tubes with filtering holes along their lengths, an upper plate having first grooves located at a lower surface and coupled to upper ends of the filtering tubes and an inlet part into which the cooling water is introduced, and a lower plate having punched holes to which lower ends of the filtering tubes are coupled. The cooling water in the filtering tubes is introduced through the punched holes and discharged at the outlet side.Type: ApplicationFiled: September 3, 2010Publication date: February 16, 2012Applicants: BHI CO., LTD., KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Sang-Yeol Kim, Hyeong Teak Kim, Chang-Hyun Kim, Sang Won Lee, Jong In Woo
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Publication number: 20110297627Abstract: A strainer wall structure that removes foreign substances from a fluid suctioned into a pipe and a re-circulation pump that is part of an emergency core cooling system (ECCS). The strainer wall structure has an inlet side and an outlet side through which cooling water is introduced and discharged, respectively, and includes a body having an opening in a direction of the inlet side, closed side surfaces, and an outlet port disposed at one of the closed side surfaces. The strainer includes a punched plate filter screen inserted into the opening. A modular cassette apparatus including grooved first filter plates is inserted into the body, and second filter plates having second grooves is inserted into the first grooves.Type: ApplicationFiled: August 17, 2010Publication date: December 8, 2011Applicants: BHI CO., LTD., KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Seung Jong Oh, Sang Yeol Kim, Hyeong Teak Kim, Chang Hyun Kim, Sang Won Lee, Jong In Woo