Steam boiler system
US4938174A · kind A · utility
6Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 25, 1989 |
| Grant date | Jul 3, 1990 |
| Priority date | — |
| Expiry date | May 25, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF22B37/565
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A steam boiler having a water blow down in which the blowdown rate is automatically controlled in response to the flow rate and impurity level of the make up water so as to maintain the boiler water impurity level below a specified concentrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.