A hydrogen catalytic recombiner
A recombiner and hydrogen technology, applied in the direction of reducing greenhouse gases, climate sustainability, reactors, etc., can solve the problems of hydrogen catalytic recombiner failure, hydrogen and oxygen can not start the reaction, etc., to avoid start-up failure and rapid catalytic reaction Effect
Active Publication Date: 2020-02-21
SHANGHAI JIAOTONG UNIV
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Problems solved by technology
[0003] However, when the mixed gas of hydrogen and oxygen containing carbon monoxide and other gases enters the hydrogen catalytic recombiner, due to the poisoning effect of carbon monoxide and other gases, the reaction between hydrogen and oxygen cannot be started, resulting in the failure of the hydrogen catalytic recombiner
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Embodiment 1
[0032] This embodiment provides a hydrogen catalytic recombiner, such as figure 1 with figure 2 As shown, it includes a recombiner body and a heating device arranged outside the recombiner body.
[0033] The recombiner body includes a catalytic panel 1 disposed in the body, an inlet 3 is provided below the catalytic panel 1 , and an outlet 2 is provided above the catalytic panel 1 and the upper side wall of the recombiner body.
[0034] The heating device includes an active heating device 4 and a passive heating device 5 .
[0035] The active heating device 4 is an electric heating device; the electric heating device is arranged outside the area formed by the catalytic panel 1 .
[0036] The passive heating device 5 includes an upper container and a lower container, an automatic control valve 9 is set between the upper container and the lower container; water 6 is placed in the upper container, and quicklime 7 is placed in the lower container.
[0037] An air chamber 8 is ...
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The invention provides a hydrogen catalytic recombiner. The hydrogen catalytic recombiner comprises a recombiner body and a heating device arranged outside the composite device body. The heating device comprises an active heating device and a passive heating device. According to the hydrogen catalytic recombiner, a pre-heating mode is adopted to heat the core-metal surface catalytic panel area ofthe hydrogen catalytic recombiner, and the heating capacity is precisely designed, so that the temperature of the panel area is higher than the critical temperature at which a reaction can be carriedout on hydrogen and oxygen under the gas poisonous effect of carbon monoxide and the like, and thus the hydrogen-oxygen catalytic reaction can be started. After the reaction is started, the temperature of the catalyst region can be maintained by the heat released by the reaction of the hydrogen and the oxygen, so that the reaction can be continued, and the starting failure of the hydrogen-oxygen reaction of the recombiner under the poisoning of the carbon monoxide is avoided.
Description
technical field [0001] The invention belongs to the technical field of hydrogen catalytic converters, in particular to a hydrogen catalytic recombiner capable of automatically starting hydrogen-oxygen catalytic reactions. Background technique [0002] In the course of a serious accident in a pressurized water reactor nuclear power plant, the zirconium alloy cladding of part of the fuel in the reactor core reacts with water vapor at high temperature, and the reactor core melt reacts with concrete to generate a large amount of hydrogen. During the transportation of hydrogen in the containment, it mixes with the air and water vapor in the containment to form a flammable mixed gas in some spaces of the containment. Under certain conditions, the mixed gas will form a temperature and pressure load in the container after combustion, and once the hydrogen mixed gas deflagrates or even explodes, it will endanger the integrity of the containment vessel and cause serious consequences f...
Claims
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IPC IPC(8): G21C9/06
CPCG21C9/06Y02E30/30
Inventor 胡珀翟书伟杜卡帅杨小杰王炜波
Owner SHANGHAI JIAOTONG UNIV