Abstract A medium passed from a high temperature system is cooled by the steps of retarding the normal rapid expansion of the medium while maintaining a relatively high velocity thereof while cooling same; passing medium cooled by the first step through a coil section for further cooling same, and performing the first two steps in the presence of a cooling medium. A heat exchanger for carrying out the method has a shell providing a flow path for a cooling medium, and a coil arranged within the shell and including a first coil section which controls expansion of the medium to be cooled and maintains the velocity high enough to maintain any condensate formed in the coil to be rapidly moved along the coil in front of the expanding medium to be cooled thus preventing hammering by preventing spaced areas or slugs of liquid condensate from moving rapidly toward each other as gaseous pockets therebetween are condensed which normally cause reduced pressure areas therebetween, and a second coil section connected to the first coil section to receive the medium to be cooled for further cooling same. The first coil section has a pair of headers and a plurality of helical loops connected between the headers. The second coil section is formed by a plurality of helical loops connected.
A method for cooling a medium passed from a high temperature system, comprising the steps of: a. providing a flow path for a liquid cooling medium; b. retarding expansion of a medium to be cooled while passing same through the flow path of the cooling medium, the retarding step (b) including the steps of: i. passing the medium to be cooled into a first header; ii. passing the medium to be cooled from the first header to a second header through a plurality of loops of smalLer diameter than coils of the coil section of step (b) and connected in parallel between the first header and the second header; and iii. passing the medium to be cooled from the second header to the coil section of step (b); c. limiting cooling of step (b) to an amount sufficient for preventing evaporation of the cooling medium; d. passing medium retarded by step (b) through a coil section for further cooling the medium in the presence of the cooling medium; and e. providing the coil section of step (d) with size sufficient to completely reduce the temperature of the medium being cooled to that of the cooling medium.
Claim 2
Independent Claim
196 words
A method for cooling a medium passed from a high temperature system, comprising the steps of: a. providing a flow path for a liquid cooling medium; b. retarding expansion of a medium to be cooled while passing same through the flow path of the cooling medium, the retarding step (b) including the steps of: i. passing the medium to be cooled into a first header; ii. passing the medium to be cooled from the first header to a second header through a plurality of loops of smalLer diameter than coils of the coil section of step (b) and connected in parallel between the first header and the second header; and iii. passing the medium to be cooled from the second header to the coil section of step (b); c. limiting cooling of step (b) to an amount sufficient for preventing evaporation of the cooling medium; d. passing medium retarded by step (b) through a coil section for further cooling the medium in the presence of the cooling medium; and e. providing the coil section of step (d) with size sufficient to completely reduce the temperature of the medium being cooled to that of the cooling medium.