Refrigeration feed system
US4123919A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1977 |
| Grant date | Nov 7, 1978 |
| Priority date | — |
| Expiry date | Jul 25, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A refrigeration feed system includes an accumulator adapted to contain liquid in its lower portion and to contain gas in its upper portion. A plurality of individual evaporators are arranged each at a different elevation above the accumulator. A pump withdraws liquid from the lower portion of the accumulator and pumps the liquid through a supply manifold to each one of the evaporators. There is a return manifold from each of the evaporators to the upper portion of the accumulator. Each evaporator has an upgoing pipe coming from the supply manifold and has a downgoing pipe going to the return manifold. A connecting device between the upgoing and downgoing pipes forms a weir disposed substantially at the elevation of the upper portion of the respective evaporator to which the manifold is connected. Liquid rising in the upgoing pipe can overflow into and mix with gas in the downgoing pipe and continue by gravital drainage back to the accumulator for recirculation. Each of the evaporators can thus be run flooded and with excess liquid automatically draining by gravity back to the accumulator. Substantially the same head or liquid pressure is maintained on each one of the individually d…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.