Water treatment control system for a boiler
US5152252A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1992 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Jan 23, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0923
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An apparatus controls treatment of water flowing through a boiler and includes a device that monitors the conductivity of the water. A controller opens a drain valve at periodic intervals, and closes the drain valve when the conductivity drops below a defined threshold. A mechanism measures the volume of water that flows into the boiler and a chemical is added to the water when a specified amount of water has flowed into the boiler. Alternatively the application of the chemical can occur at regular intervals of time. The chemical is applied for a user definable period of time. The application of the chemical is suspended when the cessation of water flow into the boiler is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.