Abstract: A steam turbine pipe 1 of an embodiment includes: an upper half side main steam pipe 11 that leads steam to a steam turbine; an upper half side main steam control valve 30 that intervenes in the upper half side main steam pipe 11; and a post-valve drain pipe 31 that is connected to the upper half side main steam control valve 30 and leads drain to an outside. The steam turbine pipe 1 further includes: a shut-off valve 32 that intervenes in the post-valve drain pipe 31; and a branching pipe 60 that makes the post-valve drain pipe 31 on the side closer to the upper half side main steam control valve 30 than is the shut-off valve 32 communicate with the upper half side main steam pipe 11 between the upper half side main steam control valve 30 and a high-pressure turbine 200.

Abstract: Efficiency of installation work of equipment such as an ECCS pump is enhanced. In an installation method of equipment, a pit can unit in which an upper side frame, a pit can, various reinforcing steels including vertical reinforcing bars reinforcing the above from a periphery, and an anchor plate supporting mechanism are integrated is manufactured in advance, and the pit can unit is placed on an MMR via a lower side frame. Further, an anchor bolt unit is disposed on the anchor plate supporting mechanism after primary concrete is deposited, a relative positional relationship of respective foundation bolts relative to the pit can is corrected by using a template, and secondary concrete is deposited under the state in which the positional relationship is corrected. After that, the ECCS pump is carried into the pit can, and an installation of the ECCS pump is completed by fixing the carried ECCS pump through the respective foundation bolts of which bottom sides are embedded.

Abstract: Efficiency of installation work of equipment such as an ECCS pump is enhanced. In an installation method of equipment, a pit can unit in which an upper side frame, a pit can, various reinforcing steels including vertical reinforcing bars reinforcing the above from a periphery, and an anchor plate supporting mechanism are integrated is manufactured in advance, and the pit can unit is placed on an MMR via a lower side frame. Further, an anchor bolt unit is disposed on the anchor plate supporting mechanism after primary concrete is deposited, a relative positional relationship of respective foundation bolts relative to the pit can is corrected by using a template, and secondary concrete is deposited under the state in which the positional relationship is corrected. After that, the ECCS pump is carried into the pit can, and an installation of the ECCS pump is completed by fixing the carried ECCS pump through the respective foundation bolts of which bottom sides are embedded.

Abstract: Maintainability of a traversing in-core probe is improved without any hindrance to passage and the like in an access tunnel in which an indexing device of a TIP system is installed. An indexing device installation unit provided in the TIP system includes: a base on which an indexing device of a traversing in-core probe used in a nuclear reactor is mounted; a holding part holding the base in a suspended state in an access tunnel formed in a nuclear reactor containment vessel; and a lift mechanism moving up and down the base held by the holding part together with the indexing device.

Abstract: Efficiency of installation work of equipment such as an ECCS pump is enhanced. In an installation method of equipment, a pit can unit in which an upper side frame, a pit can, various reinforcing steels including vertical reinforcing bars reinforcing the above from a periphery, and an anchor plate supporting mechanism are integrated is manufactured in advance, and the pit can unit is placed on an MMR via a lower side frame. Further, an anchor bolt unit is disposed on the anchor plate supporting mechanism after primary concrete is deposited, a relative positional relationship of respective foundation bolts relative to the pit can is corrected by using a template, and secondary concrete is deposited under the state in which the positional relationship is corrected. After that, the ECCS pump is carried into the pit can, and an installation of the ECCS pump is completed by fixing the carried ECCS pump through the respective foundation bolts of which bottom sides are embedded.

Abstract: In one embodiment, a carbon dioxide capturing system includes an absorption tower to bring a gas containing carbon dioxide into contact with an absorbing liquid to discharge the absorbing liquid which has absorbed the carbon dioxide and discharge the gas whose carbon dioxide concentration is reduced. The system includes a regeneration tower to release the carbon dioxide from the absorbing liquid to discharge the absorbing liquid whose carbon dioxide concentration is reduced and discharge a gas containing the carbon dioxide. The system includes a first absorbing liquid component washing apparatus to cool the gas which is discharged from the absorption or regeneration tower and has passed through an absorption or regeneration tower condenser to condense or sublime an absorbing liquid component in the gas and remove a liquid or solid product generated by the condensation or sublimation of the absorbing liquid component by using a washing liquid.

Abstract: Provided are a radioactive contamination monitoring device and a radioactive contamination monitoring method for enabling easy detection of radiation from an object to be monitored in a little surrounding space. The radioactive contamination monitoring device comprises a radiation detection unit, a photoelectric conversion unit for converting the light generated in the radiation detection unit to electricity, and a signal processing unit connected to the photoelectric conversion unit. The radiation detection unit includes a quadrangular prism-shaped light guide bar having a rectangular cross-section and a scintillator attached only to two adjacent side faces of the four side faces of the light guide bar.

Abstract: A temporary drainage system for draining rain water that flows into a floor under construction to an outside of a building during construction of a multiple-story building includes: a flexible drainage collection hose connected to a penetration hole formed in a floor slab of the floor under construction; a sand-settling vessel provided on a floor slab of a constructed floor of the building and connected to the drainage collection hose; a drainage pit provided on a lowest floor of the building to store drainage water discharged from the sand-settling vessel through a drainage hose; and a drainage pump provided in the drainage pit. The drainage water collected into the drainage pit is discharged to the outside of the building by an operation of the drainage pump.

Abstract: Even when a radiation detector contacts a pipe arrangement or another member that is an object to be monitored, the damage of the detector is prevented without impairing the detection performance. An inside-tube-wall radioactive contamination monitor comprises: a rod-like light guide bar having a polygonal cross-section; a plurality of scintillators secured to the outer circumferential surface of the light guide bar; a net-like protective tube worn so as to cover the outer circumference of the scintillators with a space between the surfaces of the scintillators and the tube; and a guide portion attached to an end of the net-like protective tube, supporting an end of the light guide bar, and having a shape the diameter of which decreases as approaching the end. The monitor includes: a photoelectric conversion unit coupled to the base end of the net-like protective tube and incorporating a photoelectric conversion element; and a signal processing unit connected to the photoelectric conversion unit.

Abstract: According to one embodiment, a thermocouple abnormality detection system including: a plurality of thermocouples each including a plurality of thermocouple wires housed in a sheath; a transmission signal conversion unit configured to convert a thermo-electromotive force generated by each of the plurality of the thermocouple wires to a transmission signal and to output the transmission signal; a transmission unit configured to transmit the transmission signal outputted from the transmission signal conversion unit; and an abnormality detection circuit configured to detect an abnormality of each of the plurality of the thermocouples by comparing, with each other, the transmission signals obtained from the plurality of thermocouple wires provided in each of the thermocouples.

Abstract: According to one embodiment, a temperature measurement system including: a plurality of thermocouples; a transmission signal conversion unit configured to convert, to a transmission signal, the thermo-electromotive force generated by each of the plurality of the thermocouple and configured to output the transmission signal; a plurality of transmission units configured to transmit the transmission signal outputted from the transmission signal conversion unit; a first connection unit configured to connect between each of the plurality of the transmission units; a second connection unit configured to connect at least one of the plurality of transmission units to a processing unit configured to process the transmission signal; and a housing unit configured to house at least the first connection unit.

Abstract: As a temporary drainage equipment, a penetration hole is formed to a floor slab of a building under construction, the penetration hole is provided with a substantially cylindrical funnel portion opened to a floor surface of a room, a connection pipe is communicated to a bottom portion of the funnel portion, and a hose guide pipe is inserted to the lower end portion of the connection pipe. An inner flange portion is provided to the lower end portion of the hose guide pipe so as to be flush with a ceiling surface of the downfloor room.

Abstract: Disclosed is a welding operation management device characterized by being provided with a weld joint specification table (101a) that associates material qualities of pipe materials and welding execution methods as pipe weld joint specifications in plant construction work with weld joints, a welding execution method table (101c) that associates base metal classes into which the material qualities are classified, weld material classes into which weld materials used for welding are classified, and welding method classes into which welding execution methods are classified with welding execution methods, a weld material identification table (101f) that associates the base material classes and the weld material classes with the weld materials, and a weld material identification unit (105); that acquires the welding execution method and material quality of a desired weld joint from the weld joint specification table (101a), acquires the weld material class thereof from the welding execution method table (101c), and

Abstract: An ultrasonic inspection apparatus includes an ultrasonic probe including an ultrasonic transducer, a position detection device, a drive element selector which is connected to the plurality of piezoelectric elements of the ultrasonic transducer provided so as to select a required piezoelectric element, a signal detection circuit which allows the piezoelectric element selected by the drive element selector to transmit ultrasonic wave to an inspection object through an acoustic transmission medium, which receives reflection echo thereof, and which detects an electric signal of the reflection echo through, a signal processor which generates three-dimensional imaging data inside of the inspection object by processing the electric signal of the detected reflection echo, a position converting circuit which outputs an imaging-start trigger signal to a signal generator in response to a position detection signal, and a display device which displays an imaging result.

Abstract: Even when a radiation detector contacts a pipe arrangement or another member that is an object to be monitored, the damage of the detector is prevented without impairing the detection performance. An inside-tube-wall radioactive contamination monitor comprises: a rod-like light guide bar having a polygonal cross-section; a plurality of scintillators secured to the outer circumferential surface of the light guide bar; a net-like protective tube worn so as to cover the outer circumference of the scintillators with a space between the surfaces of the scintillators and the tube; and a guide portion attached to an end of the net-like protective tube, supporting an end of the light guide bar, and having a shape the diameter of which decreases as approaching the end. The monitor includes: a photoelectric conversion unit coupled to the base end of the net-like protective tube and incorporating a photoelectric conversion element; and a signal processing unit connected to the photoelectric conversion unit.

Abstract: Provided are a radioactive contamination monitoring device and a radioactive contamination monitoring method for enabling easy detection of radiation from an object to be monitored in a little surrounding space. The radioactive contamination monitoring device comprises a radiation detection unit, a photoelectric conversion unit for converting the light generated in the radiation detection unit to electricity, and a signal processing unit connected to the photoelectric conversion unit. The radiation detection unit includes a quadrangular prism-shaped light guide bar having a rectangular cross-section and a scintillator attached only to two adjacent side faces of the four side faces of the light guide bar.

Abstract: As a temporary drainage equipment, a penetration hole is formed to a floor slab of a building under construction, the penetration hole is provided with a substantially cylindrical funnel portion opened to a floor surface of a room, a connection pipe is communicated to a bottom portion of the funnel portion, and a hose guide pipe is inserted to the lower end portion of the connection pipe. An inner flange portion is provided to the lower end portion of the hose guide pipe so as to be flash with a ceiling surface of the downfloor room.

Abstract: A temporary drainage system for draining rain water that flows into a floor under construction to an outside of a building during construction of a multiple-story building includes: a flexible drainage collection hose connected to a penetration hole formed in a floor slab of the floor under construction; a sand-settling vessel provided on a floor slab of a constructed floor of the building and connected to the drainage collection hose; a drainage pit provided on a lowest floor of the building to store drainage water discharged from the sand-settling vessel through a drainage hose; and a drainage pump provided in the drainage pit. The drainage water collected into the drainage pit is discharged to the outside of the building by an operation of the drainage pump.

Abstract: A benchmark marking tool includes a marking plate having an upper surface formed in a flat shape so as to mark a benchmark on the upper surface, a stud extending from a back surface of the upper surface of the marking plate and buried in a structure such as a floor of a building to fix the marking plate, and an outer peripheral flange provided around the marking plate and buried in a coating layer applied to the structure. The marking plate is provided such that the upper surface is located to be flush with or below an upper surface of the coating layer formed on the structure when the marking plate is located in the structure of the building.

Abstract: An apparatus includes a vessel 10 for storing a liquid mixture 11 containing a liquid fuel 2 and an incompatible liquid 4 such as water or for allowing the liquid mixture 11 to flow therethrough, a vibrator 13 having at least one portion making contact with the liquid mixture in the vessel, a vibration generator 20 for vibrating the vibrator at high frequency, and a reflector 14 spaced from the vibrator 13 at a small distance. The incompatible liquid 4 is dispersed in and mixed with the fuel 2 by vibrating the vibrator at high frequency, whereby an emulsion fuel 12 having an ultra fine particle size and high mixture density is produced. According to the above configuration, cavitation can be extremely efficiently generated. The following technique is disclosed: a technique for producing various types of liquid mixture having an ultra fine particle size using the cavitation efficiently.