Catalytic combustion evaporator

Abstract

The invention relates to a catalytic combustion heat exchanger. The main body is plate-fin structure and is constituted by welding with several head plate. The flow of logistics between combustor and evaporator is cross-flow and cavities are isolated by heat-conducting plate. Catalytic combustion reaction between combustible gas and air happens in the combustor to discharge mass heat energy and most of heat energy is transferred to the steam cavity through heat-conducting plate. The invention is provided with mild reaction temperature of catalytic combustion, high energy efficiency, very small pollution and friendship to circumstance. It is also provided with stable running, easy operation and compact structure. By parallel treatment of multiple cells evaporation capacity is expanded. The catalytic combustion heat exchanger, as civil hot water supply device, has a potential meaning. The catalytic combustion heat exchanger is widely applied in coupling reaction system of strong reaction heat and suction heat, and the process where reaction objects are pretreated. It is especially applied in preheating and steaming of liquid stock in fuel battery hydrogen production system, field hydrogen production system and hydrogen production of concentrated scale station.

Description

technical field [0001] The invention relates to a catalytic combustion evaporator. The catalytic combustion evaporator has potential significance as a civil hot water device; the catalytic combustion evaporator can also be widely used in a coupled reaction system with strong heat release and heat absorption, and it is necessary to carry out the reaction on the reactants. In the process of pre-evaporation, it is especially suitable for preheating and gasification of raw materials in fuel cell hydrogen production systems, on-site hydrogen production systems and centralized scale station hydrogen production systems. Background technique [0002] At present, equipment requirements tend to be compact, safe, efficient and environmentally friendly, and the new design concept of process intensification has attracted widespread attention. The catalytic combustion evaporator is produced based on this design concept. Its catalytic combustion reaction temperature is mild, its energy eff...

AI Technical Summary

Problems solved by technology

[0005] In the existing methanol reforming hydrogen production technology, a latest patent in the United States (Pub.No: 0046493A1) introduces a catalytic combustion evaporator, but it is only a simple combination of two devices, that is, catalytic burner and The evaporators are combined together, and the utilization of waste heat from combustion exhaust gas is not considered, which is just a simple technical improvement; in addition, the equipment is large in size, low in efficiency, and heavy in weight, so it cannot meet the requirements of compact and efficient hydrogen production systems. Require

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