Design and Performance Test of Large-Scale Cryopump Used in Space Environment Simulation System

DOI

10.2991/itms-15.2015.320How to use a DOI?

Keywords

Cryopump; Pumping speed for N2; Cool down time; Crossover

Abstract

A large-scale cryopump (DN1250 LN2) used in space environment simulation system was designed and its performance experimentally investigated by BISEE. In the design, the cryopanels of the cryopump were cooled by Brooks Model 1020 cold head which with high second stage cooling capacity of about 12W @ 20K. The thermal radiation shield and baffle were cooled by liquid nitrogen. A design method for three main technical data (pumping speed for N2, cool down time and crossover) of the pump was introduced in this paper. A test system according to the test standards for cryopump (JB/T 11081-2011) was built to test main performance of the cryopump. The experimental results showed that the pumping speed for N2 of the pump was up to 57,000L/s, the cool down time was about 330min, and the crossover was over than 3.0 × 105Pa•L.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Y.S. Zhao
AU  - R.P. Shao
AU  - L.C. Sun
AU  - W. Sun
AU  - Y. Wang
AU  - G.H. Ren
AU  - Z. Li
PY  - 2015/11
DA  - 2015/11
TI  - Design and Performance Test of Large-Scale Cryopump Used in Space Environment Simulation System
BT  - Proceedings of the 2015 International Conference on Industrial Technology and Management Science
PB  - Atlantis Press
SP  - 1308
EP  - 1311
SN  - 2352-538X
UR  - https://doi.org/10.2991/itms-15.2015.320
DO  - 10.2991/itms-15.2015.320
ID  - Zhao2015/11
ER  -