Head closure apparatus for heat exchanger

Details Head closure apparatus for heat exchanger Head closure apparatus for heat exchanger

F - Mech Eng,Light,Heat,Weapons

28

F

257/28

F28F 9/06 (2006.01)

Patent

CA 1282056

HEAD CLOSURE APPARATUS FOR HEAT EXCHANGER Abstract of the Disclosure The invention discloses a novel head closure apparatus for shell and tube-type heat exchangers. The disclosed appara- tus is substantially resistant to thermal stress cracking in that it has an internal closure chamber configured to withstand and dissipate thermal stresses caused by rapidly changing ther- mal gradients. The apparatus also provides for full access to the entire interior volume of the head closure and to the entire area of the head closure inner tubesheet surface in order to facilitate maintenance and repairs. The invention also discloses a compact and efficient retaining key apparatus for constraining the end-cover of a cylindrically-shaped head closure member against internal work- ing pressures. The apparatus enables substantial reductions in the masses of the retaining keys, the head closure member, and the end-cover, which results in the head closure apparatus be- ing simpler and more economical to manufacture and maintain. Background of the Invention 1. Field of the Invention. The invention relates to pressure vessels or heat exchangers, and more particularly to a head closure apparatus for use with shell and tube-type heat exchangers. In particular, the invention relates to an easily main- tainable heat exchanger head closure apparatus suitable for cycli- cal modes of operation over rapidly changing thermal gradients, in that the apparatus is highly resistant to thermal stress crack- ing which has become a problem in heat exchangers presently being used in the electrical power generation industry, among others. The invention also relates particularly to a compact and efficient retaining key apparatus for constraining the

588953

Affiliated with

Also associated with

Rating

Head closure apparatus for heat exchanger does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Head closure apparatus for heat exchanger, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Head closure apparatus for heat exchanger will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1295176