GB2618473A - Apparatus and method for cryo-preservation during transport and storage of items and/or substances - Google Patents

Apparatus and method for cryo-preservation during transport and storage of items and/or substances Download PDF

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Publication number
GB2618473A
GB2618473A GB2312500.8A GB202312500A GB2618473A GB 2618473 A GB2618473 A GB 2618473A GB 202312500 A GB202312500 A GB 202312500A GB 2618473 A GB2618473 A GB 2618473A
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United Kingdom
Prior art keywords
create
chamber
heat exchanger
ambient air
environment
Prior art date
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Pending
Application number
GB2312500.8A
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GB202312500D0 (en
Inventor
Thornton Stenhouse James
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Individual
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Individual
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Publication of GB202312500D0 publication Critical patent/GB202312500D0/en
Publication of GB2618473A publication Critical patent/GB2618473A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B7/00Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00Control issues
    • F25B2600/25Control of valves

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention relates to apparatus and a method for the creation and provision of a cryogenic cooling environment for at least a predetermined period of time within a predefined volume in a first chamber with a heat exchanger. The apparatus may include a second chamber with a heat exchanger and means for utilising ambient air, refrigeration apparatus to cool said ambient air to or below a predetermined temperature to create the cryogenic cooling environment in at least the second chamber at or below -110 degrees Celsius. The apparatus includes a compressor and control means for control of the operation of the apparatus to create an initial controlled ambient air cool down stage to create cooled air followed by the use of a vapour cycle refrigeration system in which the said cooled air is used as the means to create the cooling medium for said volume. There is also provided a method for allowing an intervention in the operation of a refrigeration system for creating a cryogenic storage environment which allows the system to regain a substantially ambient temperature condition to allow said intervention relatively quickly.

Claims (22)

  1. Claims
    1 Apparatus for the creation and provision of a cryogenic cooling environment for at least a predetermined period of time within a predefined volume in a first chamber with a heat exchanger, said apparatus including a second chamber with a heat exchanger and means for utilising ambient air, refrigeration apparatus to cool said ambient air to or below a predetermined temperature to create the cryogenic cooling environment in at least the second chamber at or below -110 degrees Celsius and wherein the apparatus includes a compressor and control means for control of the operation of the apparatus to create an initial controlled ambient air cool down stage to create cooled air followed by the use of a vapour cycle refrigeration system in which the said cooled air is used as the means to create the cooling medium for said volume.
  2. 2 Apparatus according to claim 1 wherein the refrigeration apparatus utilises a reduced TEWI gas charge.
  3. 3 Apparatus according to any of the preceding claims wherein the said volume is defined in the first chamber in the form of a container in which one or more products which are to be cooled are placed.
  4. 4 Apparatus according to any of the preceding claims wherein the said chambers are transportable or is part of a transportable apparatus.
  5. 5 Apparatus according to any of claims 1-3 wherein the chamber is provided as part of a bio storage facility within a building.
  6. 6 Apparatus according to any of the preceding claims wherein said apparatus includes means for sterilising the cooling medium to prevent cross contamination of materials.
  7. 7 Apparatus according to any of the preceding claims wherein the said cryogenic cooling environment is provided at a temperature of less than -132 degrees Celsius.
  8. 8 Apparatus according to any of the preceding claims wherein the cooling medium has temperature less than the glass transition point of water.
  9. 9 Apparatus according to any of the preceding claims wherein the vapour cycle refrigeration system creates direct cooling by evaporation of one or more mixed refrigerants using one or more air heat exchanger surfaces at an elevated internal pressure.
  10. 10 Apparatus according to claim 9 wherein the said one or more heat exchanger surfaces cool the ambient air to a temperature colder than -90 degrees Celsius, to enable cryo-preservation in the cooling medium environment.
  11. 11 Apparatus according to any of the claims 9 or 10 wherein the refrigerant mixture includes a hydro fluoro ole fin (HFO) and/or hydrohaloalkene (I II IO/ 1 II Ac) as refrigerants.
  12. 12 Apparatus according to claim 11 wherein trans-l-chloro-3,3,3-trifluoropropene is used.
  13. 13 Apparatus according to any of the preceding claims wherein the refrigerant mixture includes difluoromethane when below or at its lower flammability limit in order to achieve an Al classification.
  14. 14 Apparatus according to any of the preceding claims wherein the apparatus utilises a cryogen of mixed and variable composition which changes phase wholly inside the system and is recirculated. 18
  15. 15 Apparatus according to any of the preceding claims wherein regenerative cooling is used to provide recovery of energy as heat at a temperature above 35 degrees Celsius.
  16. 16 Apparatus according to any of the preceding claims wherein the said controlled cooldown of the said volume is achieved by combining regenerative desiccant dehumidification and forced airflow with bio preservation.
  17. 17 Apparatus according to any of the preceding claims wherein a compression cooling procedure is used utilising a mixture of gasses within said heat exchanger.
  18. 18 Apparatus according to claim 17 wherein the refrigerant cooling blend within the heat exchangers contains at least two of; trifluoromethane, tetrafluoromethane, methane, argon, nitrogen and/ or ethane.
  19. 19. Apparatus according to any of the preceding claims wherein the heat exchangers are evaporators.
  20. 20 Apparatus for the creation and provision of a cryogenic cooling environment for at least a predetermined period of time within a predefined volume, said apparatus including a chamber in which the cryogenic cooling environment is created. Said chamber including a heat exchanger, a means for utilising ambient air, refrigeration apparatus to cool said ambient air to or below a predetermined temperature to create the cryogenic cooling environment in at least the second chamber at or below -110 degrees Celsius and wherein the apparatus includes a compressor and control means for control of the operation of the apparatus to create an initial controlled ambient air cool down stage to create cooled air followed by the use of a vapour cycle refrigeration system in which the said cooled air is used as the means to create the cooling medium for said volume. 19
  21. 21. A method for allowing an intervention in the operation of a refrigeration system for creating a cryogenic storage environment, wherein said method including steps to allow the system to regain a substantially ambient temperature condition to allow said intervention by injecting a flow of hot gas into a high pressure side of the refrigeration system at a location after the location of an autocascade refrigeration system and controlling system pressures and temperatures to allow the work done by a compressor of the system to heat the refrigeration process to near ambient temperatures.
  22. 22. A method according to claim 21 wherein the return flow of the injected gas may pass either directly through or bypass the heat exchanger of the chamber.
GB2312500.8A 2021-01-19 2022-01-19 Apparatus and method for cryo-preservation during transport and storage of items and/or substances Pending GB2618473A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB2100707.5A GB202100707D0 (en) 2021-01-19 2021-01-19 Apparatus and method for cryo-preservation during transport and storage of items and/or substances
PCT/GB2022/050142 WO2022157489A1 (en) 2021-01-19 2022-01-19 Apparatus and method for cryo-preservation during transport and storage of items and/or substances

Publications (2)

Publication Number Publication Date
GB202312500D0 GB202312500D0 (en) 2023-09-27
GB2618473A true GB2618473A (en) 2023-11-08

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Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB2100707.5A Ceased GB202100707D0 (en) 2021-01-19 2021-01-19 Apparatus and method for cryo-preservation during transport and storage of items and/or substances
GB2312500.8A Pending GB2618473A (en) 2021-01-19 2022-01-19 Apparatus and method for cryo-preservation during transport and storage of items and/or substances

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB2100707.5A Ceased GB202100707D0 (en) 2021-01-19 2021-01-19 Apparatus and method for cryo-preservation during transport and storage of items and/or substances

Country Status (2)

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GB (2) GB202100707D0 (en)
WO (1) WO2022157489A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060075775A1 (en) * 2004-10-07 2006-04-13 Mikhail Boiarski Efficient heat exchanger for refrigeration process
US20100147017A1 (en) * 2006-05-15 2010-06-17 Sanyo Electric Co., Ltd. Refrigeration apparatus
CN212253209U (en) * 2020-03-23 2020-12-29 青岛海尔智能技术研发有限公司 Cascade compression refrigeration system and refrigeration equipment with same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103250012B (en) * 2011-03-18 2016-02-17 东芝开利株式会社 binary refrigeration cycle device
GB201211208D0 (en) 2012-06-25 2012-08-08 Stenhouse James T Materials and methods to improve energy efficiency and enable ultra fast recovery after defrost cycle in cascade refrigeration systems
CN106715635B (en) * 2014-09-23 2020-09-15 科慕埃弗西有限公司 (2E) Use of (E) -1,1,1,4,5,5, 5-heptafluoro-4- (trifluoromethyl) pent-2-ene in high temperature heat pumps
KR20190126476A (en) * 2018-05-02 2019-11-12 주식회사 위니아대우 Refrigerator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060075775A1 (en) * 2004-10-07 2006-04-13 Mikhail Boiarski Efficient heat exchanger for refrigeration process
US20100147017A1 (en) * 2006-05-15 2010-06-17 Sanyo Electric Co., Ltd. Refrigeration apparatus
CN212253209U (en) * 2020-03-23 2020-12-29 青岛海尔智能技术研发有限公司 Cascade compression refrigeration system and refrigeration equipment with same

Also Published As

Publication number Publication date
GB202312500D0 (en) 2023-09-27
GB202100707D0 (en) 2021-03-03
WO2022157489A1 (en) 2022-07-28

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