Disclosed are an electroplating repair apparatus, an electroplating repair system having the same, and an operating system thereof. The apparatus includes a probe body extending a predefined length in a structure corresponding to an inner diameter part of a tube, an electroplating electrode attached to and surrounding an outer circumferential surface of the probe body, a sealing member attached to opposite end sides of the probe body to seal a target portion to be electroplated, and a solution supply line supplying a solution to the target portion through the inside of the probe body, wherein the apparatus has a structure capable of wholly repairing the inside of the tube including a sealing welding part and an expanded part.

An apparatus for cooling a substructure of a steam generator in a nuclear reactor is provided. The apparatus includes a plurality of stud bolts (110) fastening a skirt of the steam generator to a sliding base. Each stud bolt is provided at the center thereof with an axial through hole (112), a flange of the skirt is provided on one side thereof with a vent passage (122), and each stud bolt is provided with at least one vent hole (114) communicating with the axial through hole (112), thereby forming an air circulation/cooling path between the vent passage (122) and the axial through hole (112) via the vent hole (114).

An apparatus for cooling a substructure of a steam generator in a nuclear reactor is provided. The apparatus includes a plurality of stud bolts (110) fastening a skirt of the steam generator to a sliding base. Each stud bolt is provided at the center thereof with an axial through hole (112), a flange of the skirt is provided on one side thereof with a vent passage (122), and each stud bolt is provided with at least one vent hole (114) communicating with the axial through hole (112), thereby forming an air circulation/cooling path between the vent passage (122) and the axial through hole (112) via the vent hole (114).

A circulating fluidized bed apparatus, comprising a circulating fluidized bed furnace 10 with an outer furnace wall 10r and at least one heat exchange chamber 20, which is friction-locked to a section of the outer furnace wall 10r, as well as a platform PL which extends horizontally and at a distance to an upper ceiling 10c of said heat exchange chamber 20, wherein the heat exchange chamber 20 is further supported by at least one leverage 50, which is arranged onto said platform PL and extends from a first end 50f, pivotally mounted to the outer furnace wall 10r, away from said furnace wall 10r to a second end 50s, and a fastener 60 extending downwardly from said second end 50s of said leverage 50 to a part of the heat exchange chamber 20 offset the outer furnace wall 10r.

A circulating fluidized bed apparatus, comprising a circulating fluidized bed furnace 10 with an outer furnace wall 10r and at least one heat exchange chamber 20, which is friction-locked to a section of the outer furnace wall 10r, as well as a platform PL which extends horizontally and at a distance to an upper ceiling 10c of said heat exchange chamber 20, wherein the heat exchange chamber 20 is further supported by at least one leverage 50, which is arranged onto said platform PL and extends from a first end 50f, pivotally mounted to the outer furnace wall 10r, away from said furnace wall 10r to a second end 50s, and a fastener 60 extending downwardly from said second end 50s of said leverage 50 to a part of the heat exchange chamber 20 offset the outer furnace wall 10r.

A flue mounted hoist includes an anchor section for anchoring within a flue hole, and an extendable arm. A winch is provided at the end of the extendable arm for attachment to a boiler. The flue mounted hoist allows safe lifting and installation of a wall-mounted boiler by a single person.

A fluidized bed boiler with a support construction for a particle separator. The fluidized bed boiler includes a bottom-supported furnace in which at least one particle separator with a support construction is in gas flow connection with an upper portion of the furnace and includes a furnace side portion, an outer portion opposite to the furnace side portion, and a conical lower portion. At least two bottom-supported downcomer pipes are in fluid connection with a steam drum and adjacent to the outer portion of the particle separator. The support construction includes a frame-like supporting member surrounding at least a portion of the conical lower portion, and an outboard portion of the supporting member is attached to the at least two downcomer pipes to support the at last one particle separator.

A fluidized bed boiler with a support construction for a particle separator. The fluidized bed boiler includes a bottom-supported furnace in which at least one particle separator with a support construction is in gas flow connection with an upper portion of the furnace and includes a furnace side portion, an outer portion opposite to the furnace side portion, and a conical lower portion. At least two bottom-supported downcomer pipes are in fluid connection with a steam drum and adjacent to the outer portion of the particle separator. The support construction includes a frame-like supporting member surrounding at least a portion of the conical lower portion, and an outboard portion of the supporting member is attached to the at least two downcomer pipes to support the at last one particle separator.

A structure for seismic isolation 10 provided on a structure plane 17 including a pair of left and right columns 5, 5 spaced apart in a horizontal direction, and a pair of upper and lower beams 7A, 7B spaced apart in a vertical direction, wherein the structure for seismic isolation comprises: a seismic isolation device 11 provided in a middle of each of the column 5, 5 to be displaced toward the beam 7A; and a horizontal rigid bearing element that is provided between an area in which the seismic isolation device 11 is provided and the beam 7B and that includes a connection beam 13 connecting the pair of columns 5, 5 and vertical braces 15L, 15R.

A structure for seismic isolation 10 provided on a structure plane 17 including a pair of left and right columns 5, 5 spaced apart in a horizontal direction, and a pair of upper and lower beams 7A, 7B spaced apart in a vertical direction, wherein the structure for seismic isolation comprises: a seismic isolation device 11 provided in a middle of each of the column 5, 5 to be displaced toward the beam 7A; and a horizontal rigid bearing element that is provided between an area in which the seismic isolation device 11 is provided and the beam 7B and that includes a connection beam 13 connecting the pair of columns 5, 5 and vertical braces 15L, 15R.