A double-ring sealing device for controlling cross-contamination

Abstract

The invention discloses a double-ring sealing device for controlling cross-contamination, which includes a flange assembly, a sealing cover assembly and an anti-off assembly; the flange assembly includes a connecting plate, an upper flange, a lower flange and a transfer channel; the connecting plate Set at the transfer interface between two adjacent chambers, the upper flange and the lower flange extend into the two chambers respectively; the transfer channel runs through the connecting plate, the upper flange and the lower flange; the sealing cover assembly includes the sealing cover and a grabbing device; after grabbing, the cover of the transfer container and the sealing cover form a first closed space and the outer surface of the cover of the transfer container is in the first closed space; the sealing cover is detachable and forms a second closed space with the upper flange; The main body of the transfer container is detachable and forms a third closed space with the lower flange; the anti-loosening component prevents the sealing cover from detaching from the upper flange. The beneficial effect of the invention is that the atmosphere between the box bodies will not produce cross contamination during the transfer process, and the outer surface of the product cup will not be polluted by the atmosphere of the inner box body.

Description

technical field [0001] The invention relates to a special sealing structure, in particular to a double-ring sealing device for controlling cross-contamination. Contamination of external surfaces. Background technique [0002] In the field of nuclear chemical industry, the production and processing of radioactive substances are usually carried out in a chamber composed of multiple sealed hot chambers, work boxes and glove boxes (collectively referred to as "sealed chambers", referred to as "chambers" for short). performed in-line. Therefore, the transfer of materials between the chambers needs to be provided with a transfer interface on each chamber so as to be docked with a device for transferring materials (such as a transfer container, etc.). In order to prevent the leakage of harmful gases and aerosols during the transfer of materials between the chambers, thereby polluting the environment and harming the human body, a special sealing device is required as the transfer ...

AI Technical Summary

Problems solved by technology

However, some existing transfer containers do not allow seals on the container body (e.g. 'product cups' for long-term storage)

However, the existing double-cap sealing technology (such as patent application No. 201210356649, the subject of which is "a multi-point locking double-cap sealing device" patent application document) must be provided with a seal on the transfer container, so it cannot meet the above applications. Require

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