Minimum wear tube support hole design

Details Minimum wear tube support hole design Minimum wear tube support hole design

1984-02-03

1986-03-18

Cline, William R.

Heat exchange

Casing or tank enclosed conduit assembly

With support in casing

165172, 165178, F28F 100, F28D 700

Patent

active

045762287

ABSTRACT:
A minimum-wear through-bore (16) is defined within a heat exchanger tube support plate (14) so as to have an hourglass configuration as determined by means of a constant radiused surface curvature (18) as defined by means of an external radius (R3), wherein the surface (18) extends between the upper surface (20) and lower surface (22) of the tube support plate (14). When a heat exchange tube (12) is disposed within the tube support plate (14) so as to pass through the through-bore (16), the heat exchange tube (12) is always in contact with a smoothly curved or radiused portion of the through-bore surface (16) whereby unacceptably excessive wear upon the heat exchange tube (12), as normally developed by means of sharp edges, lands, ridges, or the like conventionally part of the tube support plates, is eliminated or substantially reduced.

REFERENCES:
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patent: 2334855 (1943-11-01), Zinkil
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patent: 3559730 (1971-02-01), Denjean
patent: 3589438 (1971-06-01), Boorman
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patent: 4056441 (1977-11-01), Marmonier et al.
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patent: 4156299 (1979-05-01), Kovac
patent: 4160477 (1979-07-01), Roffler
patent: 4191246 (1980-03-01), Cassell
patent: 4204305 (1980-05-01), Norton
patent: 4285396 (1981-08-01), Schwoerer et al.
patent: 4433721 (1984-02-01), Biaggi

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