APPARATUS FOR HEATING GAS

Japanese Patent JP3404981

B2

PURPOSE: To increase the output of a heating apparatus and reduce sizes thereof by disposing in an intermediate portion of a pipe or a duct for supplying gas to be heated a fiber sintered mat, which has a circular cylinder shape formed conformingly to the shape of the piping or the duct, so as to arrange a combustion means having a combustion face on an inner surface.
CONSTITUTION: Premixed gas (B) fed through a pipe 1 passes between an outer shell 2 and a baffle 3 and is supplied to a cooling portion 4 comprising a mounting member 6b at both ends of a circular cylindrical fiber mat 7 so as to cool the mounting member 6b and the premixed gas (B) is preheated. The preheated premixed gas (B) flows between the baffle 3 and the fiber mat 7 and is made under the static pressure to pass through clearance in the mat 7 and reaches an inner surface of the circular cylinder which constituted a combustion surface. At this moment, the premixed gas (B) is made to burn and combustion is completed on the surface of the fiber mat 7 before high temperature combustion gas is ejected into gas to be heated. Because the fiber mat 7 can carry out combustion of the premixed gas at a high intensity on the surface thereof, a high output of the burner 20 can be obtained.

Seiji Fukuda
Nao Nakamura
Shuji Takeuchi
Yotaro Ohno

JP9685795A

May 12, 2003

April 21, 1995

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Nippon Steel Tube Co., Ltd.

F23D14/02; F23D14/16; F23D14/24; F23D14/78; F23D23/00; F24H3/04; (IPC1-7): F23D14/02; F23D14/16

JP5563311A
JP6159630A
JP6235508A
JP5694112A
JP5176043U
JP61135134U
JP561619U
JP8500425A

Takehiko Suzue

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