公开(公告)号：EP4350251A3

公开(公告)日：2024-07-31

申请号：EP23201859.8

申请日：2023-10-05

申请人： Vertiv Corporation

发明人： STEPHENS, Kiel ,  GERIG, Galen ,  BORROR, Steven A. ,  SCHUTTE, Daniel J. ,  NOLL, Roger ,  DAVIDSON, Murphy ,  RAVEN, Matthew

IPC分类号： F25B25/00 ,  F25B41/20 ,  F25B47/00 ,  F25B49/02

CPC分类号： F25B47/006 ,  F25B25/005 ,  F25B49/02 ,  F25B2600/251920130101 ,  F25B2600/250720130101 ,  F25B2700/19720130101 ,  F25B2700/2117420130101 ,  F25B2500/0620130101 ,  F25B41/20

摘要： Preventing freezing in a heat exchanger can include passing first and second cooling fluids through the heat exchanger, monitoring a temperature and/or pressure of the second cooling fluid entering the heat exchanger, heating the second cooling fluid entering the heat exchanger by opening a valve when the monitored temperature and/or monitored pressure is below a trigger temperature and/or trigger pressure, and closing the valve when a condition is met. The first cooling fluid can have a first freezing temperature and the second cooling fluid can have a second, lower freezing temperature. Opening the valve can cause the second cooling fluid, in gaseous phase, to mix with the second cooling fluid, in liquid phase, upstream of the heat exchanger.

公开(公告)号：EP4350251A2

公开(公告)日：2024-04-10

申请号：EP23201859.8

申请日：2023-10-05

申请人： Vertiv Corporation

发明人： STEPHENS, Kiel ,  GERIG, Galen ,  BORROR, Steven A. ,  SCHUTTE, Daniel J. ,  NOLL, Roger ,  DAVIDSON, Murphy ,  RAVEN, Matthew

IPC分类号： F25B25/00 ,  F25B41/20 ,  F25B47/00 ,  F25B49/02

摘要： Preventing freezing in a heat exchanger can include passing first and second cooling fluids through the heat exchanger, monitoring a temperature and/or pressure of the second cooling fluid entering the heat exchanger, heating the second cooling fluid entering the heat exchanger by opening a valve when the monitored temperature and/or monitored pressure is below a trigger temperature and/or trigger pressure, and closing the valve when a condition is met. The first cooling fluid can have a first freezing temperature and the second cooling fluid can have a second, lower freezing temperature. Opening the valve can cause the second cooling fluid, in gaseous phase, to mix with the second cooling fluid, in liquid phase, upstream of the heat exchanger.