Anhydrous ammonia vapor charge unit for an applicator tank
US9901027B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2015 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Jul 20, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF22B1/284
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An anhydrous ammonia vapor charge unit for an applicator tank maintains a pressure charge on an applicator tank. A secondary anhydrous ammonia tank is disposed adjacent to the applicator tank. Ammonia vapor from the secondary tank is passed through a vapor compressor and then is injected into the applicator tank to provide a greater pressure charge within the applicator tank. In a second embodiment, a small portion of a liquid flow stream of ammonia being removed from the applicator tank is separated from the flow stream, passed through a heat vaporizer for expanding from a liquid to a gas, passed through a vapor pressure, and then is injected into the applicator tank for maintaining the pressure charge on the applicator tank. Preferably the heat vaporizer used hydraulic fluid from a tractor to heat the anhydrous ammonia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.