A fusion reactor heat chamber cleaning exhaust gas cryogenic distillation purification recycling method and device

Abstract

The invention relates to a method and a device for purifying and recycling cleaning waste gas of a hot cell of a fusion reactor by cryogenic rectification. The method comprises six technological processes including a decontaminating cleaning technology, a filtration and purification technology of solid and liquid-state impurities, a carbon dioxide cryogenic rectification separation technology, a low-temperature power gas preparation technology, a volatile granule regeneration technology and a long-distance pneumatic transmission technology. Radioactive particles and residual radioactive gases are collected in a sorting way together with or separated from a cleaning medium by utilizing the original cleaning waste gas. The effect that radioactive wastes in the hot cell are minimized can be realized. The radioactive particles and gaseous nuclear fuel are effectively collected while the cleaning waste gas is enabled not to pollute the environment as radioactive effluent, and an originally used cleaning medium is enabled to be recycled; on the basis, a carbon dioxide dry ice blasting cleaning scheme becomes a first selected option for cleaning a polluted radioactive surface in the hot cell; furthermore, the process scheme is simple in loop structure and easy to implement, thus being suitable for the remote control operation hot cell environment.

Description

technical field

[0001] The invention relates to a method and device for cleaning exhaust gas in a fusion reactor thermal chamber, which is suitable for the internal activation of the fusion device facing the plasma and the cleaning and decontamination process of the tritium retention internal device thermal chamber maintenance process. The treatment of waste gas belongs to the field of radioactive pollution control and treatment. Background technique

[0002] The gradual depletion of fossil energy is a well-known fact, and renewable energy such as wind energy and solar energy cannot fully meet human needs for energy at present. The discovery, utilization and development of nuclear energy have gone through more than half a century, but there is still a certain degree of uncertainty in the safe utilization of fission nuclear energy by human beings. With the progress of the ITER project, fusion is increasingly coming into people's field of vision. The energy produced by the f...

Examples

Embodiment Construction

[0034] In order to express the purpose, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] Such as figure 1 As shown, the parts to be cleaned are transported by the remote operation device to the hot chamber cleaning unit, and the transport device transports the parts to be cleaned to the bottom of the injector, and the injector sprays high-speed dry ice particles to remove the adhesion and weak solid contamination on the surface of the parts to be cleaned. After a cleaning task is completed, the interior of the cleaning unit is sprayed and purged with gas. After cleaning, the dusty exhaust gas is filtered through the pre-dust filter to prevent the solid radioactive parti...

technical field

[0001] The invention relates to a method and device for cleaning exhaust gas in a fusion reactor thermal chamber, which is suitable for the internal activation of the fusion device facing the plasma and the cleaning and decontamination process of the tritium retention internal device thermal chamber maintenance process. The treatment of waste gas belongs to the field of radioactive pollution control and treatment. Background technique

[0002] The gradual depletion of fossil energy is a well-known fact, and renewable energy such as wind energy and solar energy cannot fully meet human needs for energy at present. The discovery, utilization and development of nuclear energy have gone through more than half a century, but there is still a certain degree of uncertainty in the safe utilization of fission nuclear energy by human beings. With the progress of the ITER project, fusion is increasingly coming into people's field of vision. The energy produced by the f...

Examples

Embodiment Construction

[0034] In order to express the purpose, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] Such as figure 1 As shown, the parts to be cleaned are transported by the remote operation device to the hot chamber cleaning unit, and the transport device transports the parts to be cleaned to the bottom of the injector, and the injector sprays high-speed dry ice particles to remove the adhesion and weak solid contamination on the surface of the parts to be cleaned. After a cleaning task is completed, the interior of the cleaning unit is sprayed and purged with gas. After cleaning, the dusty exhaust gas is filtered through the pre-dust filter to prevent the solid radioactive parti...

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