Load-deflection characteristics of small bore insulated pipe clamps
High temperature LMFBR piping is subject to rapid temperature changes during transient events. Typically, this pipe is supported by specially designed insulated pipe clamps to prevent excessive thermal stress from developing during these transients. The special insulated clamps used on both FFTF and CRBR piping utilize a Belleville spring arrangement to compensate for pipe thermal expansion. Analysis indicates that this produces a non-linear, directionally sensitive clamp spring rate. Since these spring rates influence the seismic response of a supported piping system, it was deemed necessary to evaluate them further by test. This has been accomplished for the FFTF clamps. A more standard insulated pipe clamp, which does not incorporate Belleville springs to accommodate thermal expansion, was also tested. This type clamp is simple in design, and economically attractive. It may have wide application prospects for use in LMFBR small bore auxiliary piping operating at temperatures below 427/sup 0/C. Load deflection tests were conducted on 2.54 CM and 7.62 CM diameter samples of these commercial clamps.
- Research Organization:
- Westinghouse Hanford Company, Richland, Washington
- DOE Contract Number:
- AC06-76FF02170
- OSTI ID:
- 5565350
- Report Number(s):
- CONF-820601-
- Journal Information:
- Am. Soc. Mech. Eng., Pressure Vessels Piping Div., (Tech. Rep.) PVP; (United States), Vol. PVP.-VOL. 68; Conference: ASME pressure vessel and piping conference, Orlando, FL, USA, 27 Jun 1982
- Country of Publication:
- United States
- Language:
- English
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LMFBR TYPE REACTORS
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SUPPORTS
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TRANSIENTS
BREEDER REACTORS
EPITHERMAL REACTORS
EXPANSION
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