Mitsubishi Hitachi Power Systems, Ltd.

Sipec Corporation

Mitsubishi Heavy Industries Limited

Musashino Chemical Laboratory, Ltd.

Yoshiaki Yamaguchi

Tetsu Konishi

Satoshi Mizukami

Takahisa Nitta

Hiroyuki Yamazaki

Nobuhiro Miki

Satoshi Tanimura

Shinya Ishikawa

Junichiro Masada

Taiki Kinoshita

Hikaru Kurosaki

Kazumasa Takata

Tomoyuki Hirata

Takaaki Hase

Masaki Mitani

Hiroshi Makigano

Tomohiro Arimura

Toshio Takanezawa

Takuya Suzuki

A cylinder for a combustor includes a cylindrical member, a first cooling passage defined in the cylindrical member and a second cooling passage defined in the cylindrical member, and a supply port extender. The first cooling passage includes a supply port that opens to an outer peripheral surface of the cylindrical member. The second cooling passage includes a discharge port that opens to the outer peripheral surface of the cylindrical member downstream of the supply port. The supply port extender includes a first wall that is disposed between the supply port and the discharge port and extends away from the outer peripheral surface of the cylindrical member and a second wall that is disposed upstream of the supply port and extends away from the outer peripheral surface of the cylindrical member.

Cylinder for combustor, combustor, and gas turbine

A gas turbine combustor comprising a plurality of cooling air passages (A) through which bled pressurized air flows from downstream of a combustion gas flow toward upstream, the plurality of cooling air passages (A) being disposed in a wall portion () side by side and aligned in a flow direction of a combustion gas; wherein the plurality of cooling air passages (A) are divided via a passage transition groove portion () into upstream cooling air passages (A) disposed closer to bled pressurized air inlet holes () and downstream cooling air passages (A) disposed closer to bled pressurized air outlet holes (), and center lines (C) of the upstream cooling air passages are non-collinear with center lines (C) of the downstream cooling air passages.

Combustor cooling structure

A gas turbine equipped with a compressor, a combustion chamber and a turbine is further equipped with: a pressurizing device for taking a portion of the compressed air compressed by the compressor, and pressurizing the compressed air; a combustion chamber cooling line for cooling the combustion chamber using the pressurized compressed air; a temperature regulating line for regulating the temperature of a stationary member of a blade ring or the like of a turbine by using the pressurized compressed air; a combustion chamber supply line through which the compressed air flows from the pressurizing device to the combustion chamber cooling line; a turbine supply line through which the compressed air flows from the pressurizing device to the temperature regulating line; a heater for heating the compressed air, provided in the turbine supply line; and a control device capable of controlling the heater.

Gas turbine, gas-turbine control device, and gas turbine operation method

A chemical supply system comprises, as principal elements, a chemical storage tank in which a liquid chemical for cleaning is stored in the state of its formulated concentrate, a chemical supply apparatus connected to the chemical storage tank for positively performing chemical supply, a piping system connected to the chemical supply apparatus to form a supply flow passage that is a passage for ultrapure water which the liquid chemical is to be mixed with, a pair of discharge nozzles disposed at end portions of the piping system so as to oppose surfaces of a wafer set in a cleaning chamber to supply a cleaning liquid onto the surfaces. Thereby, remarkable miniaturization/simplification of a cleaning liquid supply system including chemical tanks is intended, it is made possible easily and rapidly to compound and supply a cleaning liquid at an accurate chemical concentration, and particles or the like being generated and mixing in a cleaning liquid, are suppressed to the extremity.

Chemical supply system

A method for the purification of lactide is provided which permits lactide of high optical purity or DL-lactide of high purity to be produced from crude lactide by the removal of meso-lactide from the crude lactide. This method for the purification of lactide is characterized by causing a mixture containing L-lactide and/or D-lactide together with meso-lactide to contact with water thereby effecting hydrolysis of meso-lactide. This method can remove meso-lactide from crude lactide and produce DL-lactide and/or optically active lactide of high optical purity in high yield and, in the production of optically active lactide, can eliminate the restrictions otherwise imposed on the formation of meso-lactide. Thus, it lends itself to the simplification of the procedure for the synthesis of lactide.

Method for purification of lactide

Growing community of inventors

Tokyo, Japan

Yoshiaki Yamaguchi