Title:
SYSTEMS AND METHODS FOR PURGING CHILLER SYSTEM
Document Type and Number:
Japanese Patent JP2022009384
Kind Code:
A
Abstract:
To provide a heating, ventilation, air conditioning and refrigeration (HVAC&R) system including a refrigerant loop and a purge system configured to purge the HVAC&R system of non-condensable gases.SOLUTION: A purge system 80 includes: a liquid pump 84 configured to draw a first refrigerant flow from an evaporator 38; a controllable expansion valve 86 configured to receive the first refrigerant flow from the liquid pump 84 and reduce the temperature of the first refrigerant flow; and a purge heat exchanger 88, which includes a purge coil 108. The purge coil 108 is configured to receive the first refrigerant flow from the controllable expansion valve 86; a chamber of the purge heat exchanger 86 is configured to draw a mixture of non-condensable gases and a second refrigerant flow from a condenser 34; and the purge heat exchanger 88 is configured to separate the non-condensable gases from the second refrigerant flow utilizing the first refrigerant flow.SELECTED DRAWING: Figure 5
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Inventors:
MACCRAE WILLIAM MONTEITH
JAY ALBERT KOHLER
DAVID ANDREW BRADSHAW
ANDREW MICHAEL WELCH
JAY ALBERT KOHLER
DAVID ANDREW BRADSHAW
ANDREW MICHAEL WELCH
Application Number:
JP2021172776A
Publication Date:
January 14, 2022
Filing Date:
October 22, 2021
Export Citation:
Assignee:
JOHNSON CONTROLS TECH CO
International Classes:
F25B43/04; F04F5/16; F25B1/00; F25B45/00
Domestic Patent References:
| JP2009221883A | 2009-10-01 | |||
| JP2000283585A | 2000-10-13 | |||
| JPH09236349A | 1997-09-09 | |||
| JP2001280740A | 2001-10-10 | |||
| JP2020531785A | 2020-11-05 |
Foreign References:
| US3013404A | 1961-12-19 | |||
| WO2017011378A1 | 2017-01-19 | |||
| DE102013021177A1 | 2015-06-18 | |||
| US5515690A | 1996-05-14 | |||
| US5517825A | 1996-05-21 |
Attorney, Agent or Firm:
Osamu Yamamoto
Toru Miyamae
Yoshiyuki Tamura
Toru Miyamae
Yoshiyuki Tamura