SEALED TRANSMISSION DEVICE FOR HELIUM SPACE OF HIGH TEMPERATURE GAS COOLED REACTOR AND DRIVE DEVICE THEREOF

摘要

A sealed transmission device for a helium space of a high temperature gas cooled reactor and a drive device thereof are disclosed. The helium space is enclosed by a chamber body (2), a pressure-bearing casing (3), a fastener (4) and a sealing element (5). A transmission member (8) is connected with an executing member (6) inside the helium space (1) and a driving member (7) outside the helium space (1). The transmission member (8) is a magnetic coupling which includes the pressure-bearing casing (3), a driving magnetic component (9) arranged outside the pressure-bearing casing (3) and a driven magnetic component (10) arranged inside the pressure-bearing casing (3). The driving member (7) and the driving magnetic component (9) are connected to each other and the executing member (6) and the driven magnetic component (10) are connected to each other. The sealed transmission device and the drive device seal the thermal state radioactive helium space fully, and satisfy controllability and reliability requirements of operations.