Heat exchanger for cooling cracked gas
US5813453A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 1997 |
| Grant date | Sep 29, 1998 |
| Priority date | — |
| Expiry date | Apr 3, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D2021/0075
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat exchanger for cooling cracked gas with several cooling pipes (4), each accommodated in an outer pipe (6). The cooling pipes are welded at each end to a water chamber (7 & 8) that supplies and receives a coolant. Each water chamber is in the form of a straight and solid component with separated round depressions (11) in it. Each depression accommodates a single cooling pipe. The diameter of the depression is as long as or longer than the inside diameter of the outer pipe. The depression has an annular base (12) with thinner residual walls in the vicinity of the ends of the cooling pipe. The straight and solid components that comprise the water chamber consist of individual sections (7.1, 7.2. & 7.3 and 8.1, 8.2, & 8.3), each with a single depression that accommodates a cooling pipe which are all fastened together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.