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1. 发明公开

EP1031800A1 CATALYTIC COMBUSTION HEATER 有权
标题翻译：催化燃烧加热器
公开(公告)号：EP1031800A1
公开(公告)日：2000-08-30
申请号：EP98947931.6
申请日：1998-10-19
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： YAMADA, Tomoji, Nippon Soken, Inc. , HIROSE, Shoji, Nippon Soken, Inc. , OGINO, Shigeru, Toyota Jidosha Kabushiki Kaisha
IPC分类号： F24H1/14 , F23D14/18
CPC分类号： F24H1/40 , F24H1/0045 , F24H1/26 , F24H1/44
摘要： A catalytic combustion heater for a heat exchanger (1) which has a fuel gas flow passage (11), and a plurality of tubes (5) provided in the fuel gas flow passage, formed so as to have a fluid to be heated flow therein, and having catalyst support fins (51) fixed to an outer surface thereof, and which is formed so that the object fluid is heated by an oxidation reaction of the fuel gas. A control unit (6) is adapted to judge that a flow rate of the object fluid is low until the temperature of the object fluid detected by temperature detector (8) provided in the vicinity of an outlet of an object fluid flow passage (55) has not exceeded a predetermined level, for example, a boiling point thereof, to restrain the heat transfer to the interior of the tubes (5) and increase temperature of the fins (51) early to a catalyst activating level. The control unit is also adapted to increase the flow rate of the object fluid to a specific level after the temperature thereof has exceeded the boiling point thereof, to promote the heat transfer to the object fluid, whereby a desired high-temperature gas is obtained with a short starting time as the attainment of unnecessarily high temperatures of the fins (51) and tubes (5) is prevented.
摘要翻译：用于具有燃料气体流动通道（11）的热交换器（1）的催化燃烧加热器以及设置在燃料气体流动通道中并且形成为具有待加热流体的多个管（5）在其中流动并且具有固定在其外表面上的催化剂载体翅片（51），并且其形成为使得通过燃料气体的氧化反应加热目标流体。控制单元（6）适于判断目标流体的流速低，直到由设置在目标流体流动通道（55）的出口附近的温度检测器（8）检测到的目标流体的温度为止，没有超过预定的水平，例如其沸点，以限制向管5内部的热传递并且将翅片51的温度提前提高到催化剂活性水平。控制单元还适于在目标流体的温度超过其沸点之后将目标流体的流速增加到特定水平，以促进向目标流体的热传递，由此获得期望的高温气体因为防止了翅片（51）和管（5）达到不必要的高温，所以启动时间很短。

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