Method and apparatus for injecting a chemical into a fluid stream
US6453926B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Apr 10, 2001 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Apr 10, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87603
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for introducing a chemical into a fluid stream comprises a chemical injector adapted to be interposed within the path of the fluid stream flowing from an upstream conduit to a downstream conduit. The chemical injector includes primary and secondary channels, substantially parallel to the fluid flow through the upstream conduit, and a chemical feed channel having an input end, adapted to communicate with a chemical source, and an output end coupled at an angle to the secondary channel. Injection of a chemical into a fluid stream comprises directing the stream through an upstream conduit; dividing the stream into a primary flow and a substantially parallel secondary flow; coupling a chemical source at an angle to the secondary flow; increasing the fluid flow pressure until chemical flow into the secondary flow is induced by vacuum pressure; and directing the primary and secondary flows into the downstream conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.