Noritz Corporation

Sharp Kabushiki Kaisha Corporation

Shinko Pantec Co., Ltd.

Hiroki Yamaji

Yuta Tsuji

Hideyuki Fujisawa

Masahiro Iguchi

Hiroyuki Chifuku

Masanori Sugisawa

Kazuyuki Gotou

Yoshikazu Takai

Koki Narita

Takayoshi Doi

A header of a heat exchanger including a first wall connected with a plurality of heat transfer tubes of the heat exchanger, a second wall facing the first wall with an interval therebetween, and a circumferential wall connecting outer circumferential edges of the first and the second walls in such a manner that an area between the first and the second walls constitutes a chamber for inflow of fluid, the chamber communicating with each of the heat transfer tube. At least one of the first and the second walls is configured to curve in such a manner that a central area of the wall is positioned close to an inside of the chamber than an outer circumferential area of the wall. The thickness of the header is reduced and enough strength of the header is obtained, thereby preferably enduring repeating water hammer.

Header of heat exchanger and heat exchanger provided with the same

The heat exchanger HE comprising a casehousing a plurality of heat transfer tubesand a headerhaving a hollow main bodywith an open edge. A side wallof the caseis provided with a bulging portionhaving a cylindrical circumferential wallbulging out of the caseand an end wallwhich blocks a tip portion of the circumferential wall. Each end of the heat transfer tubesis inserted into a penetrating holeprovided for the end wallof the bulging portion, and is jointed to the end wall, and the open edgeof the headeris fitted onto the circumferential wallof the bulging portion, thereby forming a chambercommunicating with the inside of each heat transfer tube. Therefore, it is possible that the number of the members of the heat exchanger HE is reduced, the configuration is simplified, and the heat exchanger HE is easily manufactured at low cost.

Heat exchanger and production method thereof

The present invention provides a method for treatment of wastewater containing organic sulfur compounds The method includes introducing the wastewater into an apparatus body equipped with a fixed bed in which fixed carriers for the attachment of microorganisms are filled and a fluidized bed in which flowing carriers for the attachment of microorganisms are flown, and enabling the wastewater to flow through the fluidized bed towards the fixed bed so that the wastewater is biologically treated by the fluidized bed and the fixed bed.

Method and apparatus for treatment of wastewater

Growing community of inventors

Kobe, Japan

Hiroki Yamaji