公开(公告)号：US20020058225A1

公开(公告)日：2002-05-16

申请号：US09985779

申请日：2001-11-06

Applicant: Mitsui Engineering and Shipbuilding Company Limited

Inventor： Masao Namba ,  Kenzo Miura ,  Yoshitada Tomoyasu ,  Hidehiro Kiuchi ,  Yasuaki Harada ,  Teruo Urayama ,  Kazuo Shimamura ,  Norio Tezuka

IPC: F24H001/00

CPC classification number: F28F19/00 ,  F23G5/006 ,  F23G5/46 ,  F23G2201/302 ,  F23G2201/303 ,  F23G2201/304 ,  F23G2202/20 ,  F23G2206/10 ,  F23G2206/203 ,  F28D7/12 ,  Y02E20/12 ,  Y10S165/901 ,  Y10S165/905

Abstract: In an air heater for use in recovering, by heat exchange, the heat of an exhaust gas generated from an incinerator for disposing of wastes, prolonged service life and improved working efficiency are attainable with least thermal deformation. The air heater has a heat transfer conduit which is placed in high temperature highly corrosive gas. The transfer conduit comprises a short seal pipe (212) going through a ceiling of said air heater and fixed at the ceiling, a metal ring member (214) arranged outside of the shot seal pipe through a sealing material and arranged to be able to move along a longitudinal axis of said shot seal pipe, a heat transfer pipe (216) formed of a refractory material having a heat conductivity, connected to said metal ring member at a top end portion and sealed at a lower end portion, and a metallic pipe (218) arranged inside of said short seal pipe and said heat transfer pipe in coaxial, providing a through hole at a lower part thereof and providing a metallic support fitting welded at the bottom thereof. The short seal pipe is connected to an inlet pipe of an air to be heated and supported by a structural member of the air heater at a top end thereof. The metallic pipe is connected to an outlet pipe of a heated air and supported by a structural member of the air heater at a top end thereof. The heat transfer pipe is supported by the metallic support fitting by means of being set into a hollow part formed on an inner surface of the heat transfer pipe.

Abstract translation: 在用于通过热交换来回收由用于处置废物的焚烧炉产生的废气的热量，延长的使用寿命和提高的工作效率的空气加热器中，通过最少的热变形可以实现。 空气加热器具有放置在高温高腐蚀性气体中的传热导管。 输送导管包括穿过所述空气加热器的天花板并固定在天花板处的短密封管（212），金属环构件（214），其通过密封材料布置在喷射密封管的外部，并且布置成能够移动 沿着所述喷射密封管的纵向轴线，由具有导热性的耐火材料形成的传热管（216），其在顶端部分处连接到所述金属环构件并在下端部密封，并且金属管 （218），其布置在所述短密封管的内部并且所述传热管同轴，在其下部提供通孔，并在其底部提供焊接的金属支撑配件。 短密封管连接到待加热空气的入口管，并在空气加热器的顶端由空气加热器的结构件支撑。 金属管连接到加热空气的出口管，并在其顶端由空气加热器的结构件支撑。 传热管由金属支撑配件通过设置在形成在传热管的内表面上的中空部分支撑。