Steam generator tube support

Details Steam generator tube support Steam generator tube support

Category

F - Mech Eng,Light,Heat,Weapons

Subcategory

22

Subsubcategory

B

CPC

122/147

IPC codes

F22B 37/64 (2006.01) F28F 9/013 (2006.01)

Type

Patent

Patent number

CA 1245120

Description

-12- 52,022 ABSTRACT A tube support plate is disclosed for supporting a plurality of tubes with reduced vibration in a nuclear steam generator. The support plate has a plurality of holes disposed therethrough in a regular array. Each hole has an axis, an interior surface and a plurality of lands supported on the interior surface and extending towards the axis. The support plate has a given thickness as taken along the hole axis, and each of the lands has a tapered surface for facilitating tube insertion. The method of forming the tube support plate comprises a first step of forming each of the holes through the support plate with a first cylindrical portion of a first diameter and a second cylindrical portion of a second diameter less than the first diameter. Next, portions of the second cylindrical portion are removed in a second step to form a plurality of lands having exposed ends supporting a tube within the hole.

Application Number

492666

Affiliated with

Also associated with

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