| (19) |
 |
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(11) |
EP 4 350 251 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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31.07.2024 Bulletin 2024/31 |
| (43) |
Date of publication A2: |
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10.04.2024 Bulletin 2024/15 |
| (22) |
Date of filing: 05.10.2023 |
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| (51) |
International Patent Classification (IPC):
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| (84) |
Designated Contracting States: |
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AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT
NL NO PL PT RO RS SE SI SK SM TR |
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Designated Extension States: |
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BA |
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Designated Validation States: |
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KH MA MD TN |
| (30) |
Priority: |
05.10.2022 US 202263413602 P
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| (71) |
Applicant: Vertiv Corporation |
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Westerville, OH 43082 (US) |
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| (72) |
Inventors: |
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- STEPHENS, Kiel
Columbus 43215 (US)
- GERIG, Galen
Columbus 43232 (US)
- BORROR, Steven A.
Grove City 43123 (US)
- SCHUTTE, Daniel J.
Lewis Centre 43035 (US)
- NOLL, Roger
Gahanna 43230 (US)
- DAVIDSON, Murphy
Westerville 43081 (US)
- RAVEN, Matthew
Mount Gilead 43338 (US)
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| (74) |
Representative: Bryn-Jacobsen, Caelia et al |
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Kilburn & Strode LLP
Lacon London
84 Theobalds Road
London WC1X 8NL
London WC1X 8NL (GB) |
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| (54) |
HEAT EXCHANGER FREEZE PROTECTION |
(57) 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.