Electrostatic coalescer with resonance tracking circuit
US9440241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2009 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Dec 16, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C2201/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrostatic coalescer includes an outer wall defining a flow path for receiving a process fluid. A plurality of electrode plates is disposed within the flow path. A controller includes an inductor and a signal generator. The inductor is coupled in parallel with the plurality of electrode plates. The inductor and the plurality of electrode plates define a resonant circuit. The signal generator is coupled to the plurality of electrode plates and operable to apply an alternating current signal to the plurality of electrode plates at a frequency corresponding to a resonant frequency of the resonant circuit in the presence of the process fluid. The signal generator varies the frequency of the alternating current signal based on a positive feedback signal received from the resonant circuit to maintain resonance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.