Ihi Corporation

Ishikawajima-harima Heavy Industries Co., Ltd.

Nucor Corporation

Ihi Machinery and Furnace Co., Ltd.

Kazuo Miyoshi

Hiroyuki Otsuka

Soichiro Kato

Kimiyoshi Satoh

Shusaku Yamasaki

Toshiro Fujimori

Atsushi Hirata

Shinsuke Matsuno

Masahiro Nakajima

Shintaro Ito

Masahiro Uchida

Takahiro Tanaka

Katsumi Nakayama

Hiroki Yoshizawa

Taku Mizutani

Masashi Ueda

Tsukasa Saitou

Shogo Onishi

Tetsuya Hirata

Hideki Ogata

Yoshiyuki Yamane

Yoshiyasu Matsuda

Noboru Hiramoto

Ryo Akiyoshi

Yasuhiro Shigegaki

Hisakazu Onizuka

Takahisa Nagao

Yoshimi Watabe

The heat cycle facility includes: a first vaporizer that vaporizes a first liquid heating medium by combusting fuel; a first motive power generator that generates motive power by using as a drive fluid a first gas heating medium obtained at the first vaporizer; a condenser that condenses the first gas heating medium discharged from the first motive power generator by heat-exchanging the first gas heating medium for a second liquid heating medium; a circulator that pressurizes the first liquid heating medium obtained at the condenser and supplies the pressurized first liquid heating medium to the first vaporizer; a second vaporizer that produces gaseous ammonia by heat-exchanging the second liquid heating medium for liquid ammonia; and a supplier that supplies the liquid ammonia to the second vaporizer.

Heat cycle facility

The present disclosure relates to a boiler water supply preheater system which preheats water (boiler water supply) supplied to a boiler by a predetermined preheating means, wherein the preheating means is a Rankine cycle (thermal cycle) which moves heat of a waste heat source in the boiler to the boiler water supply to perform preheating and drives a generator to generate electric power using a heat medium.

Boiler water supply preheater system and boiler water supply preheating method

A continuous heating furnace includes one or a plurality of closed type gas heaters each having a combustion chamber, a guide section that guides an exhaust gas, an exhaust hole that discharges the exhaust gas and a first radiation surface that extends in a direction perpendicular to a baking object conveyance direction wherein the first radiation surface is heated by combustion in the combustion chamber and heat from the guide section and transfers radiant heat to the baking object. The continuous heating furnace also has at least one exhaust heat transfer unit that is juxtaposed with a corresponding closed type gas heater in the conveyance direction, wherein the at least one exhaust heat transfer unit has a second radiation surface that communicates with the exhaust hole of a closed type gas heater and is heated by the exhaust gas, and a heat transfer acceleration unit that accelerates heat transfer from the exhaust gas to the second radiation surface in a direction perpendicular to the conveyance direction of the second radiation surface.

Continuous heating furnace

This vacuum cleaning device is provided with: a vapor chamber in which vapor of a hydrocarbon-based cleaning agent is generated; a condensation chamber; a first heat exchanger in which heat exchange between the vapor and a heating medium is carried out; a cleaning chamber in which a workpiece can be cleaned under vacuum by the condensed cleaning agent that has been generated in the condensation chamber; a compressor that adiabatically compresses and further heats the heating medium that was heated by the first heat exchanger; a second heat exchanger that carries out heat exchange between the heating medium heated by the compressor and the hydrocarbon-based cleaning agent in the vapor chamber; and a vacuum unit that further cools the heating medium that has been cooled by the second heat exchanger by forcing vacuum expansion of the heating medium. The heating medium cycles through the first heat exchanger, the compressor, the second heat exchanger, and the vacuum unit by the heating medium cooled by the vacuum unit being returned to the first heat exchanger.

Vacuum cleaning device

A combustion heater () provided with a heating plate (); a placement plate () disposed opposite the heating plate; an outer wall () provided around the outer circumference of the heating plate and the placement plate; a partitioning plate () that is disposed opposite the heating plate and the placement plate inside a space enclosed by the heating plate, the placement plate, and the outer wall, that forms a lead-in portion () by a gap with the placement plate, and that forms a lead-out portion () by a gap with the heating plate; and a combustion chamber () that is arranged in the space enclosed by the heating plate, the placement plate and the outer wall, and at which the fuel gas that was introduced from the lead-in portion combusts, and that leads out exhaust gas produced by the combustion toward the lead-out portion; in which a concavo-convex portion () that has concavities and convexities in the thickness direction is provided in the partitioning plate.

Combustion heater

A combustion heater () that is provided with a heating plate (); a placement plate () disposed opposite the heating plate; an outer wall () provided around the outer circumference of the heating plate and the placement plate; a partitioning plate () that is disposed opposite the heating plate and the placement plate inside a space enclosed by the heating plate, the placement plate, and the outer wall, that forms a lead-in portion () by a gap with the placement plate, and that forms a lead-out portion () by a gap with the heating plate; a linking portion () that links the lead-in portion and the lead-out portion; a combustion chamber () that combusts fuel gas at the lead-out portion near the linking portion; and a flame-stabilization portion () that is provided in the combustion chamber and that maintains the combustion of the fuel gas in the combustion chamber.

A chimney has a lower portion substantially in the shape of a pyramid and an upper portion forming a cylindrical portion that extends with a predetermined dimension upwardly and is provided in a ceiling portion of a building of a coil yard that is used for temporary storage of the hot-rolled coil which is an intermediate iron and steel product acting as a high-temperature heat radiator that is manufactured using the hot-rolling equipment of an iron and steel mill. A power generating turbine is provided at a predetermined position in the cylindrical portion. An intake duct is provided on a lower end portion of the side walls of the building. Hot-rolled coils that are in a high-temperature condition after manufacture are successively imported into the coil yard and accumulated and stored until transfer to a subsequent processing step. An ascending airflow is generated by sequential heating of air introduced into the building from the intake duct using heat retained in the hot-rolled coils. The power generating turbines are rotated by the ascending airflow passing through the cylindrical portion of the chimney to thereby execute wind power generation. As a result, the heat retained in the high-temperature heat radiator manufactured by introduction of heat can be efficiently used.

High-temperature radiator storage yard generating apparatus

A metal strip casting apparatus and method of casting metal strip include assembling a pair of counter-rotatable casting rolls positioned laterally forming a nip between for casting, and assembling a pair of brush rolls, each of the brush rolls associated with one of each of the casting rolls. Each brush roll includes at least one spaced apart brush line extending substantially along the axial length of the casting roll. The brush lines may form a spiral, zigzag, wave or crisscross array about the brush roll. The brush roll may include one or more staggered rings with regularly or irregularly spaced apart bristles which form the brush lines. The brush lines may be between 10 to 50 mm apart and separated by between 2 mm to 45 mm of open space. The brush lines may be one line per 10 mm to 90 mm of axial length of brush roll.

Brush roll for casting roll

A cooling system for a vacuum processing apparatus is provided with an internal heat conduction path for transfer of heat entering the subject body through the vacuum processing apparatus, a heat radiation path for radiation of the heat to an outside of the vacuum processing apparatus and a heat conduction path for regulation of quantity of heat transfer between the internal heat conduction path and the heat radiation path. Preferably, a heat pipe is applied to the internal heat conduction path.

Cooling device for vacuum treatment device

Growing community of inventors

Tokyo, Japan

Kazuo Miyoshi