Refrigeration In ancient times... The use of ice to refrigerate and - - PowerPoint PPT Presentation

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Refrigeration In ancient times... The use of ice to refrigerate and - - PowerPoint PPT Presentation

Feb 25, 2024 204 likes •345 views

Refrigeration In ancient times... The use of ice to refrigerate and thus preserve food goes back to prehistoric times. Through the ages, the seasonal harvesting of snow and ice was a regular practice of most of the ancient cultures: Chinese,

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Refrigeration

In ancient times... The use of ice to refrigerate and thus preserve food goes back to prehistoric

  • times. Through the ages, the seasonal

harvesting of snow and ice was a regular practice of most of the ancient cultures: Chinese, Greeks, Romans, Persians. Ice and snow were stored in caves or dugouts lined with straw or other insulating materials. This practice worked well through the centuries, with icehouses remaining in use into the 20th century. Today... Cooling systems have progressed through the ages and now, Vitrum Group, presents their modern, efficient and reliable Central Cooling System. This presentation will introduce the new cooling system including its new features and capabilities. We hope you enjoy!

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Central Cooling System - The Basics

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1.Filter at each in the suction line or on each compressor

  • 2. High pressure switch for each compressor

3.Liquid receiver with shut-off valves and inspection glass

  • 4. Oil receiver with inspection glass and

shut-off valve

  • 5. Shut-off ball on liquid and suction lines
  • 6. Dampers to avoid vibrations
  • 7. Emergency safety valve receiver with a

three way valve system

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  • 5. Shut-off ball on liquid and suction lines
  • 6. Dampers to avoid vibrations
  • 7. Emergency safety valve receiver with a

three way valve system

  • 8. Control of electrical parameters
  • 9. Digital display of high and low pressure
  • 10. Monitoring the temperature of injected

gas

  • 11. Compressor “BOCK”
  • 12. Differential oil valve
  • 13. Oil filter
  • 14. Separator
  • 15. Mechanical oil level adjustment
  • 16. Shut-off valve at each oil valve regulator
  • 17. Semiconductor compressor heater
  • 18. Oil pressure monitoring
  • 19. Check valves on compressor discharge

line

  • 20. Service valve for oil change on each

compressor

  • 21. Ball shut-off valve
  • 22. Sight glass on liquid line
  • 23. Drier filter on liquid line - replaceable
  • 24. Control system “Danfoss”

Central Cooling System - The Basics

(8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18) (19) (20) (21) (22) (23) (24)

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  • Condensation pressure regulator
  • Electronic oil level
  • Liquid cut-off
  • Step less capacity control at 25% work
  • Soft start (saving energy at start of 40%)
  • Monitoring compressors on eight parameters
  • Text- messaging alarm system
  • Additional cooling for air and water
  • Ventilation system for control box unit

Optional Modules

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Basic parameters of mid-temp system R404a

System code Number of compressors Qo kW, Tev=-5oC, Qo kW, Tev=-10oC, Qo kW, Tev=-15oC, Total mass, kg Size, mm L*W*H 2G.215.00.000. 2 23.0 18.7 14.9 415.0 1200*1000*1600 2G.255.00.000. 2 27.8 22.8 18.5 418.0 1200*1000*1600 2G.315.00.000. 2 34.7 28.5 23.0 426.0 1200*1000*1600 2G.380.00.000. 2 42.4 34.9 28.3 475.0 1200*1000*1600 2G.465.00.000. 2 52.6 43.0 34.7 622.0 1500*1000*1600 2G.555.00.000 2 64.2 52.6 42.4 667.0 1500*1000*1600 2G.650.00.000. 2 75.9 62.5 50.8 674.0 1500*1000*1600 2G.725.00.000 2 80.3 65.1 51.9 834.0 1800*1000*1600 2G.830.00.000 2 91.2 74.6 60.2 871.0 1800*1000*1600 System code Number of compressors Qo kW, Tev=-5oC, Qo kW, Tev=-10oC, Qo kW, Tev=-15oC, Total mass, kg Size, mm L*W*H 3G.215.00.000. 3 34.4 28.0 22.4 525.1 1600*1000*1600 3G.255.00.000. 3 41.7 34.3 27.7 533.6 1600*1000*1600 3G.315.00.000. 3 52.0 42.7 34.5 554.0 1600*1000*1600 3G.380.00.000. 3 63.6 52.3 42.5 590.6 1600*1000*1600 3G.465.00.000. 3 78.8 64.5 52.0 797.8 1900*1000*1600 3G.555.00.000 3 96.3 78.8 63.6 856.5 1900*1000*1600 3G.650.00.000. 3 113.8 93.7 76.2 861.8 1900*1000*1600 3G.725.00.000 3 120.5 97.6 77.8 1063.4 2200*1000*1600 3G.830.00.000 3 136.7 111.9 90.2 1102.6 2200*1000*1600 System code Number of compressors Qo kW, Tev=-5oC, Qo kW, Tev=-10oC, Qo kW, Tev=-15oC, Total mass, kg Size, mm L*W*H 4G.215.00.000. 4 45.9 37.3 29.9 649.0 2000*1000*1600 4G.255.00.000. 4 55.6 45.7 37.0 657.0 2000*1000*1600 4G.315.00.000. 4 69.4 56.9 46.0 680.0 2000*1000*1600 4G.380.00.000. 4 84.8 69.8 56.7 729.0 2000*1000*1600 4G.465.00.000. 4 105.1 86.0 69.4 981.0 2400*1000*1600 4G.555.00.000 4 128.4 105.1 84.8 1049.0 2400*1000*1600 4G.650.00.000. 4 151.7 124.9 101.5 1056.0 2400*1000*1600 4G.725.00.000 4 160.7 130.2 103.7 1300.0 2700*1000*1600 4G.830.00.000 4 182.3 149.2 120.3 1347.0 2700*1000*1600

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Examples of installed Cooling System modules

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Thank you for getting to know

  • ur Cooling Systems

We look forward to working with you. Please do not forget to visit our websites: www.vitrum.lv www.gastrovitrum.lv www.logivitrum.lv You can also find us on Facebook at

www.facebook.com/ vitrumgroup and Twitter.

Our address: G.Astras 3a, Riga, Lv 1084 Latvia Phone: (+371) 67802384 Email: info@vitrum.lv