Valve type radioactive source screening device

Abstract

The invention relates to valve type radioactive source shielding assembly which belongs to nuclear radiation protection and nuclear application technical field. The shielding assembly includes valve body and core. Its structure features are that the valve body is joined to shield by rabbet which can put radiant; the valve core and through-hole are vertically set in the valve body; one end of the valve core is connected with compressing mechanism in the valve body; another end is connected with the thrust mechanism out of the valve body. When radiant is not in working state, the valve core will cover the through-hole to seal the radiant by the compressing mechanism. When it is in working state, the valve core will be over against the through-hole to open the radiant by thrust mechanism. The advantages of the invention are that it has simple structure, small size; it can realize standardization and parameterization of the shielding assembly, uses standard exterior structure to satisfy multiple source integration.

Description

technical field [0001] The invention relates to the technical field of nuclear radiation protection and nuclear application, in particular to a valve device for shielding radioactive sources. Background technique [0002] In the field of nuclear application technology, the radiation safety protection of radioactive sources and the shielding and opening design of radiation is a very important link, and its safety system is far greater than the design requirements for other electromechanical systems. In the current application of radioactive sources, the production base usually provides the source body as a mechanical strength support for the radioactive source. The user provides the designed shielding structure to the production base, and puts the radioactive source into the shielding structure for use by the user. . The entire circulation process is time-consuming and laborious, and the industrial production of shielding devices cannot be realized. There are potential safe...

AI Technical Summary

Problems solved by technology

The entire circulation process is time-consuming and laborious, and the industrial production of shielding devices cannot be realized

There are potential safety hazards in the conventional way of shielding and opening the door or goal driven by a motor. When a motor failure, mechanical failure or power failure occurs during use, it needs to be manually repaired and eliminated, which will pose a threat to the personal safety of the operator. threaten

Moreover, this complex shielding structure is not conducive to the realization of high-precision multi-source body integration at small spatial locations.

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