Non-condensable gas purge system for refrigeration circuit
US10247457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2016 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | May 28, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/2109
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A non-condensable gas purge system is configured to be used in a chiller system that uses a low pressure refrigerant in a loop refrigeration circuit. The non-condensable gas purge system includes a purge tank and a purge heat exchanger coil arranged inside the purge tank. The purge tank has a tank inlet for receiving the low pressure refrigerant from a condenser of the refrigeration circuit, a tank outlet for returning the low pressure refrigerant to an evaporator of the refrigeration circuit, and a purge outlet for purging non-condensable gas from the purge tank to the ambient atmosphere. The purge heat exchanger coil is fluidly connected to the loop refrigeration circuit such that the low pressure refrigerant contained in the loop of the chiller system can pass through the purge heat exchanger coil. Refrigerant in the purge tank is condensed by the heat exchanger coil while non-condensable gases remain gaseous.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.