Heat exchanger with concentric tubes
US5940987A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1997 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Apr 14, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D7/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat exchanger particularly for use in fluidized-bed driers, includes at least one supply pipe and one discharge pipe for the heat transfer fluid, and at least one heat exchange tube carrying the heat transfer fluid. In order to make the heat exchanger tubes easily accessible and to ensure that the distribution and drainage system for the heat transfer fluid affects the flow through the heat exchanger as little as possible, each heat exchanger tube is connected to the supply pipe for heat transfer fluid at one end and is closed at the other end. Each heat exchange tube includes an inner outlet tube pipe with a smaller diameter, which has at least one opening at the closed end of the heat exchanger pipe and an opposite end connected to a drainage discharge pipe for receiving the heat transfer liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.