Test stand for use in field of high-throughput testing of catalytic converter, has heating and/or cooling unit for heating and/or cooling restrictor to temperature that differs from temperature of environment and temperature of vessel

摘要

The stand has two reaction vessels arranged in parallel, where each reaction vessel includes an inlet line and an outlet line. The vessels are connected to a fluid supply line. The inlet lines include a restrictor i.e. capillary restrictor, made of a ceramic material, drawn glass, fused silica or fused quartz. The restrictor is in thermal and/or physical contact with a heating and/or cooling unit, which heats and/or cools the restrictor to temperature that differs from temperature of an environment and from temperature of the respective vessel. The restrictor is screwed in a frame (600).