Mitsubishi Heavy Industries Engineering, Ltd.

Kinki University

Naniwa Roki Co., Ltd.

Ayumu Yamazaki

Kaori Yoshida

Rikio Kan

Koji Nakayama

Kiyotaka Kunimune

Moritoshi Murakami

Seiji Kakesako

Tamio Ida

Yoshimasa Kawami

Jun Satou

A tube leak detection device for detecting leak of at least one tube of a heat exchanger which increases a temperature of a liquid by heat exchange between the liquid flowing inside the at least one tube and a fluid flowing outside the at least one tube includes: an inlet opening-and-closing valve and an outlet opening-and-closing valve disposed at an inlet end and an outlet end of the at least one tube, respectively; and a pressure detection member for detecting a pressure inside the at least one tube between the inlet opening-and-closing valve and the outlet opening-and-closing valve.

Tube leak detection device and tube leak detection method

A gas purification device removes a part of ammonia contained in a first gas; recovers a first off-gas containing the removed ammonia, removes hydrogen sulfide and ammonia from a second gas produced by removing the part of ammonia, recovers a second off-gas containing the removed hydrogen sulfide and ammonia, and combusts the first off-gas and the second off-gas. The gas purification device includes: a first combustion chamber in which combustion is performed in a reducing atmosphere; a second combustion chamber in which combustion is performed in a reducing atmosphere downstream of the first combustion chamber; and a third combustion chamber in which combustion is performed in an oxidizing atmosphere downstream of the second combustion chamber. The first off-gas flows into the first combustion chamber and the second off-gas flows into the third combustion chamber.

Gas purification device

An exhaust gas cooler includes: a steam drum containing first water; an economizer for heat exchange between exhaust gas and the first water supplied from the steam drum; and a feedwater pipe for supplying the first water with second water having a lower temperature than the first water. The exhaust gas cooler is configured such that the first water flowing out of the economizer is introduced into the steam drum. The second water is divided and supplied to the first water flowing out of the economizer and the first water flowing into the economizer.

Exhaust gas cooler

An apparatus and process for producing biocoke usable as a substitute fuel for coal coke from biomass as a raw material. The apparatus comprises pulverizing means for pulverizing a biomass raw material attributed to photosynthesis; heating means for heating to the temperature range in which the hemicellulose of the pulverized biomass raw material is pyrolyzed so as to exhibit bonding effects; pressurization means for, in the state of the heating, pressurizing to the pressure range in which the lignin of the pulverized biomass exhibits a thermal curing reaction and maintaining the pressure; and cooling means for cooling after maintaining the state of the pressurization. The apparatus further comprises temperature detecting means provided at the exit end of the region being heated by the heating means and regulation means for judging a reaction terminal point in accordance with the result of the temperature detection and regulating the timing for transfer from heating to cooling.

Apparatus and process for producing biocoke

Growing community of inventors

Tokyo, Japan

Ayumu Yamazaki