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steam generator tube support

A steam generator and tube support technology, applied in the field of power systems, can solve problems such as complex assembly, increased assembly time, and incorrect assembly

Active Publication Date: 2018-02-06
NUSCALE LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A system that includes a large number of parts for installing and / or holding the individual tubes will require a significant amount of time to install, inspect and / or disassemble and may introduce the possibility of incorrect assembly
In addition to increasing assembly time, the large number of parts may increase the likelihood that one or more parts such as screws, clamps, etc. will loosen during operation
Other types of pipe support systems that include mounting holes and mounting spacers require complex assembly and limit pipe movement until the steam generation system is fully installed
Additionally, it can be difficult to screw the tube into a support structure that includes mounting holes or other types of mounting structures with restrictive tolerances

Method used

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Examples

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Embodiment Construction

[0062] For ease of viewing and to provide a better understanding of the various embodiments disclosed herein, various terms may be referred to by acronyms or abbreviations, such as: Reactor Pressure Vessel (RPV) and Steam Generator ( SG).

[0063] figure 1 An exemplary nuclear reactor module 5 is shown comprising a reactor core 6 surrounded by a reactor vessel 2 . The coolant 10 in the reactor vessel 2 surrounds the reactor core 6 . The reactor core 6 may be located in a shroud 22 which surrounds the reactor core 6 around its sides. When the coolant 10 is heated by the reactor core 6 due to a fission event, the coolant 10 may be directed from the shroud 22 up into the annulus 23 above the reactor core 6 and out of the standpipe 24 . This may cause additional coolant 10 to be drawn into the shroud 22 , which in turn is heated by the reactor core 6 , which draws more coolant 10 into the shroud 22 . The coolant 10 emerging from the standpipe 24 can be cooled and directed towa...

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PUM

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Abstract

The present invention discloses a tube support assembly for a steam generator system, which includes: a sheet or support rod configured to support a plurality of heat transfer tubes of a steam generator system; and a set of protrusions extending from the sheet Surface extension of timber or support rods. The set of protrusions may extend from the surface of the sheet or support rod a distance greater than or equal to the outer diameter of the heat transfer tube. Adjacent tubes of the plurality of tubes may be spaced apart from each other by one or more protrusions.

Description

[0001] Statement of relevant application [0002] This application claims priority to US Provisional Application No. 61 / 921,044, filed December 26, 2013, and non-provisional Application No. 14 / 261,830, filed April 25, 2014. technical field [0003] The present application relates to the field of power generation, including power systems having steam generator tube assemblies. Background technique [0004] Tube support designs such as those that include perforated support plates, which may be configured to support and / or hold structures configured for straight pipe or All steam generator tubes of SG of U-tube type. For straight or U-tube type SGs, the tubes can be inserted through holes in the support plate and the tube ends inserted directly into the tube sheet. For alternate tube designs such as helical tubes, the tubes can be screwed through holes in such support plates, but the tube ends must then be curved, or curved tube segments must be welded to the tube ends so tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22B37/20
CPCF22B37/205F16L3/02F16L3/227
Inventor W·科斯基T·利兹凯A·克鲁斯坎普S·卡德尔W·波洛克
Owner NUSCALE LLC