Lightweight primary mirror back heat control system of large-aperture telescope

Abstract

The invention discloses a lightweight primary mirror back heat control system of a large-aperture telescope and relates to the field of large-aperture telescopes, aiming to solve the cooling cycle power problem of cold air in lightweight primary mirror back heat control of the large-aperture telescopes and the air cooling and heat exchange problems after heat exchange of primary mirrors. The lightweight primary mirror back heat control system comprises a heat control fan device and a plurality of air nozzles, and the heat control fan device comprises an axial fan, a heat exchanger, eight damping rubber cylinders, four mounting angle plates, two reinforcing plates, four fixing suspension rods, four suspension rod transition plates, a flexible corrugated pipe, a mirror chamber air duct transition pipe and a heat exchanger air duct transition pipe. The lightweight primary mirror back heat control system of the large-aperture telescope has the advantages that the system is capable of providing power for cold air circulation while controlling the cold air temperature to make the cold air to exchange heat sufficiently, and cooling fluid in a heat exchanger can bring heat of a primary mirror of the telescope away; in order to prevent vibration of the axial fan from transferring to the primary mirror, the damping rubber cylinders are used for isolating vibration generated during mounting and fixing, the flexible corrugated pipe is used for isolating vibration generated on an air duct, and small vibration is achieved.

Description

technical field [0001] The invention relates to the technical field of large-aperture telescopes, in particular to a thermal control system for the back of a lightweight main mirror of a large-aperture telescope. Background technique [0002] In order to better explore galaxies in outer space, study the formation of the universe, and assist human activities in the outer space of the earth, telescopes are required to have higher diffraction-limited resolution, stronger light-gathering capabilities, and farther detection capabilities. To achieve this goal, the telescope needs a larger primary mirror. However, with the increase of the aperture of the primary mirror of the telescope, the quality of the primary mirror is also increasing. On the one hand, it will make the installation and adjustment, deformation control and motion control of the primary mirror very difficult. On the other hand, due to the increase of thermal inertia And a series of thermal problems brought by it ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the cooling cycle power problem of the cold air in the back thermal control of the lightweight main mirror of the large-caliber telescope and the cooling heat exchange problem of the air after heat exchange with the main mirror, the present invention provides a thermal control system for the back of the light-weight main mirror of the large-caliber telescope , to meet the thermal control index requirements of the primary mirror of the telescope

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