Apparatus and process for the periodic cleaning-out of solids deposits from heat exchanger pipes
US4366003A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1980 |
| Grant date | Dec 28, 1982 |
| Priority date | — |
| Expiry date | Nov 25, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28G9/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention concerns an apparatus and a process for the periodic cleaning out of the pipes of heat exchangers to remove deposits of finely-divided solids, in particular carbon black or pyrogenically produced inorganic oxides. The apparatus consists of jet nozzles, which are arranged at a spacing above the gas entry openings of the pipes and are supplied with a cleaning gas, having excess pressure with respect to the process gas, via ducts provided with shut-off elements. The jet nozzles can be stationary or arranged for displacement along a row of the heat exchanger pipes. The process envisages flushing the pipes to be cleaned preferably in succession during operation of the heat exchanger, periodically, with a gas stream released with an impact and maintained for a short time at high speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.