Patent ID: 9551537
Date: 2017-01-24
CPC Classifications: F28D

Claim:
1. A heat exchanger for use in a contact group of a sulfuric acid plant, comprising: a chamber in which a tube bundle is arranged on a circular ring, a gas space formed between the tube bundle and a chamber casing surrounding the tube bundle; a gas supply opening provided in the chamber casing and configured to introduce a gas into the gas space substantially radially to the tube bundle; a gas outlet opening which adjoins an interior space enclosed by the tube bundle at a center of the tube bundle and is configured to allow the gas to exit the center of the tube bundle substantially axially to the tube bundle; and a vertical heat-exchange section disposed subsequent to the gas outlet opening of the chamber, the vertical heat-exchange section including a plurality of tubes arranged in a substantially vertical direction, wherein the center of the tube bundle is offset with respect to a center of the chamber casing in a direction opposite to the as supply opening, and wherein the vertical heat-exchange section includes about 70 to 90% of the heat-exchange surface of the heat exchanger.