Heat exchange – With protector or protective agent
Patent
1994-04-19
1995-12-12
Flanigan, Allen J.
Heat exchange
With protector or protective agent
138110, F28F 1900
Patent
active
054741238
ABSTRACT:
A tube shield for protecting the tubes of heat exchangers, such as boilers and condensers, from hostile elements. The tube shield includes an axially elongated arcuate protector member and a plurality of spring clips secured to the axial free edges of the protector member at spaced locations along the length of the protector member. The spring clips are sized and configured such that they splay outwardly as the protector member is pressed downwardly over an associated tube to pass the maximum diameter of the tube and thereafter move inwardly in a spring biased manner to bitingly engage the exposed portion of the tube to preclude inadvertent separation of the protector from the tube. Each spring clip includes a central portion mounted to the protector member, an outboard portion extending circumferentially from the central portion to a location circumferentially beyond the respective free edge of the protector member, and an inboard portion extending circumferentially from the central portion to a location within the arc of the protector member. The clips are mounted to the protector member by mounting brackets which allow the clips to move both axially and circumferentially relative to the protector member.
REFERENCES:
patent: 1942211 (1934-01-01), Hartwig
patent: 2646818 (1953-07-01), Bimpson
patent: 3318374 (1967-05-01), Block
patent: 3850146 (1974-11-01), Graham et al.
patent: 3999600 (1976-12-01), Bell
patent: 4619314 (1986-10-01), Shimoda
patent: 4667733 (1987-05-01), Bessouat et al.
patent: 4682568 (1987-07-01), Green et al.
patent: 4776790 (1988-10-01), Woodruff
patent: 4809645 (1989-03-01), Fournier et al.
patent: 5154648 (1992-10-01), Buckshaw
patent: 5220957 (1993-06-01), Hance
Helmick Corporation Brochure, "Eliminate boiler and condenser tube failure with Helmick Tube Shields" (2 pp.).
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