Nuclear testing apparatus and testing method using the threshold ignition passive hydrogen recombiner

The present invention discloses a testing device and a testing method using the ignition threshold of passive nuclear hydrogen recombiner, the prior art can not solve the problem fully simulate a nuclear power plant a high hydrogen concentration accident conditions. The present invention includes a piston means, and suspension means for blocking passive hydrogen recombiner chimney exit stainless steel cladding. During the introduction of the hydrogen gas, the stainless steel cladding covering the chimney exit live recombiner, the air circulation and effectively prevent hydrogen elimination reaction, hydrogen concentration in the reactor can quickly rise in the hydrogen concentration reaches a preset value , pushed by the fluid suspension mechanism is displaced, resulting in decline in stainless steel cladding, the composite is exposed flue outlet, generates the composite air circulation, and elimination of hydrogen at high hydrogen concentration. The present invention is a realistic simulation of nuclear power plant accident high hydrogen concentration conditions, the test results for passive hydrogen recombiners is very close to the ignition threshold of actual conditions, a very good reference standards for the research and design of the composite filter.