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China Suppliers - Modified Claude Liquefaction Cycle Helium Liquefier from Leading Factory for Ultra-Low Leakage
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China Suppliers - Modified Claude Liquefaction Cycle Helium Liquefier from Leading Factory for Ultra-Low Leakage

Discover advanced helium liquefaction systems with Fullcryo, a leading manufacturer and supplier in China specializing in high-performance gas and cryogenic technologies. Our modified Claude liquefaction cycle ensures ultra-low leakage rates, enhancing system efficiency and reliability. With smart control features and multi-point component monitoring, our systems offer unmatched precision and reliability. Explore multiple optional modules to customize your setup, making Fullcryo the preferred choice for helium liquefaction solutions among suppliers and factories in China

    Product Description

    A Large cryogenic helium liquefaction plant adopts helium turbine reverse Bratton refrigeration cycle to obtain the corresponding refrigeration capacity. High-pressure helium is obtained through helium compressor first, part of high-pressure helium is expanded and cooled in turbine expander, and the remaining high-pressure gas is cooled step by step in multistage heat exchanger, and finally liquid helium is obtained by throttling through Jiao Tang throttle valve, and the obtained liquid helium is directly output as product. Such refrigeration equipment is called a helium liquefier.

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    4.5K Helium Refrigerator/Liquefier Process Diagram
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    4.5K Helium Refrigerator/Liquefier Process Diagram

    Helium refrigerator/liquefier can usually work in two modes: refrigeration mode and liquefaction mode. If it works in refrigeration mode, the liquid helium obtained provides 4.5K constant temperature cooling for the user equipment, and the evaporated helium is returned to the cold box to recover the cold capacity and then recycled. If operating in liquefaction mode, the obtained liquid helium is directly exported as a product.

    1 Helium compressor
    2 4.5K cold box
    3 Liquid helium dewar
    4 Oil removal system
    5 Control cabinet
    6 Coaxial transfer line
    7 LN2 tank
    8 Helium buffer tank
    The basic composition of a 4.5K helium refrigerator/liquefier system consists of several parts as shown in Figure 2:
    • 1. The circulating air source system includes: helium compressor, helium oil separator and helium storage tank
    • 2. 4.5K cold box: The 4.5K cold box is a vacuum adiabatic cold box, which contains a multistage heat exchanger, a helium turbine expansion machine, an internal adsorption cylinder, a low-temperature valve, measuring elements and other components.
    • 3. Liquid helium storage system: It includes liquid helium dewar, coaxial transmission tube from cold box to liquid helium dewar, and infusion tube for transferring liquid helium
    • 4. Control system: Including control system hardware, software, configuration and remote control.
    • 5. Public facilities: Including liquid nitrogen storage tank, instrument air system, cooling water system.

    Product Parameters

    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
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    Frequently Asked Questions (FAQ)

    Q: How does a large cryogenic helium liquefaction plant obtain refrigeration capacity?
    It adopts a helium turbine reverse Bratton refrigeration cycle. High-pressure helium is first generated by a helium compressor, partially expanded and cooled in a turbine expander, and then cooled step-by-step in a multistage heat exchanger before final throttling through a Jiao Tang throttle valve.
    Q: What are the two operation modes of the helium refrigerator/liquefier?
    The system can work in either refrigeration mode or liquefaction mode. In refrigeration mode, it provides 4.5K constant temperature cooling and recycles evaporated helium. In liquefaction mode, the liquid helium is directly exported as a product.
    Q: What components make up the circulating air source system?
    The circulating air source system includes a helium compressor, a helium oil separator, and a helium storage tank.
    Q: What is contained inside the 4.5K cold box?
    The 4.5K cold box is a vacuum adiabatic cold box containing a multistage heat exchanger, a helium turbine expansion machine, an internal adsorption cylinder, a low-temperature valve, and measuring elements.
    Q: What public facilities are required for the 4.5K helium refrigerator/liquefier system?
    The system requires public facilities including a liquid nitrogen storage tank, an instrument air system, and a cooling water system.