Mitsubishi Hitachi Power Systems, Ltd.

Mitsubishi Heavy Industries Limited

The University of Tokyo

Noboru Kawamoto

Keigo Matsumoto

Tetsuya Yamada

Kazuhiro Mochizuki

Shozo Kaneko

Katsuhiko Yokohama

Atsushi Tsutsumi

Masaaki Kinoshita

Yoshiki Yamaguchi

Ryuhei Takashima

Yasuki Kansha

Ryuichiro Tanaka

Toshifumi Kudo

Akimasa Takayama

Kenichiro Kosaka

Naoki Suganuma

Chihiro Fushimi

Takahiro Okimoto

Shun Yamanouchi

Koji Ohura

A combustion burner includes a fuel nozzle configured to blow in fuel gas of solid fuel and air, a combustion air nozzle configured to blow in air from the outside of the fuel nozzle, and at least one flame stabilizer arranged on the axial center side at a distal end of the fuel nozzle. The flame stabilizer is arranged at the distal end, and has a flame stabilizing member whose width increases in a direction toward the distal end, and a straightening vane having a plate shape and being arranged on an extension of the flame stabilizing member on the upstream side in a flow direction of the fuel gas. An abrasion-resistant member is arranged on a wide width surface of the flame stabilizer, and an abrasion-resistant member is arranged on at least a part of the straightening vane.

Combustion burner and method for maintaining combustion burner

An object is to provide a decompression device including a plurality of stages of orifice plates disposed in a flow passage, which generates less noise in response to sonic feedback phenomenon and gas-column resonance. A decompression deviceA includes: an upstream orifice platedisposed in a ductforming a flow passage for a fluid F; and a downstream orifice platedisposed in the flow passage and downstream of the upstream orifice plate. A jet-flow interference partA is disposed only partially on an outlet rim portion of an orificeon the upstream orifice plateand configured to interfere with a jet flow discharged from the orifice. Positions of Karman vortices e are differentiated in a duct axial direction between regions with and without the jet-flow interference partA to reduce generation of noise.

Low-noise decompression device and combustion device

A water-containing solid fuel drying apparatus that can efficiently dry with low energy consumption by effectively utilizing sensible heat and latent heat of a heating medium for drying, etc. is provided. A drying apparatus () that dries water-containing solid fuel includes a dryer () that injects scavenging gas into the interior of a drying vessel () in which a heat transfer pipe () is disposed; a dust collector () that removes microparticles from microparticle-containing mixed gaseous fluid that has flowed out of the drying vessel (); a compressor () that compresses vapor-containing mixed gaseous fluid; a vapor heat exchanger () that preheats low-pressure mixed gaseous fluid with high-pressure mixed gaseous fluid compressed at the compressor (); and a gas-liquid separator (), in which the high-pressure mixed gaseous fluid is employed as drying gas that radiates heat by passing through the heat transfer pipe (), that performs gas-liquid separation of water-containing scavenging gas that has flowed out of the heat transfer pipe () while containing condensed water of vapor generated due to heat radiation, wherein the water-containing solid fuel is dried by heating the water-containing solid fuel in the drying vessel () utilizing latent heat and sensible heat of the mixed gaseous fluid.

Water-containing solid fuel drying apparatus and drying method

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Kanagawa, Japan

Noboru Kawamoto