Super Cryogenic Refrigerator (SCR)
0102030405
Fullcryo 4.5K Helium Liquefaction Unit
Product Description
Helium Liquefaction Unit is a highly efficient and reliable system for producing liquid helium. With its advanced technology, automated control systems, and robust safety features, it is an essential tool for scientific research, medical technology, and various industrial applications. By optimizing energy consumption and maximizing yield, these systems provide cost-effective solutions for meeting the growing demand for liquid helium.
4.5K Helium Refrigerator/Liquefier Process Diagram
①Helium compressor ②4.5K cold box ③Liquid helium dewar ④Oil removal system ⑤Control cabinet ⑥Coaxial transfer line
⑦LN2 tank ⑧Helium buffer tank
1. Compression:
Helium Compressors: The helium gas is compressed to a high pressure using helium compressors. This initial compression is crucial for the subsequent cooling and expansion processes.
2. Pre-Cooling:
Heat Exchangers: The compressed helium is pre-cooled using heat exchangers, which transfer heat from the helium to a cooler medium (often another cryogenic fluid like liquid nitrogen).
3. Expansion and Cooling:
Turbo expanders: The pre-cooled helium is then expanded through turbo expanders, which lower its temperature significantly. Turbo expanders are more efficient than Joule-Thomson valves because they do work on the expanding gas, thus reducing its temperature more effectively.
Expansion through Joule-Thomson Valves: After turbo expansion, the helium undergoes further cooling through Joule-Thomson (JT) expansion valves to reach the final liquefaction temperature.
4. Heat Exchangers:
Heat Exchangers: These are used to maximize the heat transfer efficiency between the high-pressure, warm incoming gas and the low-pressure, cold outgoing gas. This step is critical for improving the overall efficiency of the liquefaction process.
5. Liquefaction:
Cold Box: The series of expansions and heat exchanges result in the helium gas reaching its liquefaction point at around 4.5 K. The liquefied helium is then collected in a storage dewar.
Product Parameters
4.5K Helium Refrigerator/Liquefier Process Diagram
| HELIUM REFRIGERATOR SERIES | FHLR-40 | FHLR-70 | FHLR-100 | FHLR-140 | FHLR-180 | FHLR-240 | FHLR-280 | FHLR-400 |
| COOLING CAPACITY W | 160 ~250 | 250~320 | 320~450 | 450 ~580 | 580~750 | 750 ~900 | 900 ~1000 | 1000 ~1800 |
| COMPRESSOR RATED POWER KW | 75~90 | 90~~132 | 132~160 | 160~200 | 200~250 | 250~315 | 315~355 | 355~425 |
| HELIUM LIQUEFIER SERIES | FHL-40 | FHL-70 | FHL-100 | FHL-140 | FHL-180 | FHL-240 | FHL-280 | FHL-400 |
| LIQUEFACTION RATE L/H | 40~70 | 70~100 | 100~140 | 140~180 | 180~240 | 240~280 | 280~310 | 310~420 |
| COMPRESSOR RATED POWER KW | 75~90 | 90~132 | 132~160 | 160~200 | 200~250 | 250~315 | 315~355 | 355~425 |
