INTEGRAL ECONOMIZER FOR U-TUBE GENERATOR

摘要

An economizer compartment for a shell and tube vapor generator is disclosed in which the cold feedwater to be heated enters the compartment at an intermediate point along its length and is divided into two oppositely directed flow paths that exit the compartment at opposite ends. The compartment is disposed in spaced-apart relation from the adjacent interior surfaces of the vapor generator shell in order to protect the same against thermal shocking as a result of contact by unheated feedwater.