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System and method for improving the liquefaction rate in cryocooler-based cryogen gas liquefiers

A refrigerant and refrigeration compressor technology, which is applied in the direction of machines that use refrigerant evaporation, refrigeration and liquefaction, refrigerators, etc., to achieve stable liquefaction efficiency and high efficiency

Inactive Publication Date: 2018-04-13
UNIV DE ZARAGOZA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In practice, however, the achievable liquefaction performance (in L / day / kW) for these small-scale liquefiers (6-12 L / day / kW)

Method used

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  • System and method for improving the liquefaction rate in cryocooler-based cryogen gas liquefiers
  • System and method for improving the liquefaction rate in cryocooler-based cryogen gas liquefiers
  • System and method for improving the liquefaction rate in cryocooler-based cryogen gas liquefiers

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Embodiment Construction

[0057] In the following description, for purposes of explanation and not limitation, details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the invention may be practiced in other embodiments that depart from these details and illustrations without departing from the spirit and scope of the invention. Certain embodiments will be described below with reference to the drawings, wherein illustrative features are indicated by reference numerals.

[0058] in accordance with figure 2 In a general embodiment of a known liquefaction system (1) (also referred to herein as a cryostat) comprising an isolated storage vessel (2) or Dewar comprising a liquid storage portion (3) and a neck extending therefrom part (4) and connected to the external container (5) at ambient temperature. The storage container (2) is insulated by the shell (6) and the volume inside the shell (6) outside the sto...

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Abstract

The present invention relates to a system and method for improving the liquefaction rate in cryocooler-based cryogen gas liquefiers. The present invention relates to a cryogen-gas liquefaction system(1) and method comprising: a storage container (2) comprising a liquid storage portion (3) and a neck portion (4) with a liquefaction region (8) above said bath (7); a coldhead (9) arranged at the neck portion (4) comprising one or more refrigeration stages (10, 11); a gas intake module (12) containing an amount of gas-phase cryogen for its introduction into the storage container (2); and a pressure control mechanism (13) for controlling the cryogen gas pressure within the liquefaction region (8) of the storage container (2).

Description

technical field [0001] The present invention relates generally to systems and methods for liquefying gases, and more particularly to such systems and methods adapted to obtain increased liquefaction and performance efficiencies. The main field of application of the present invention is helium liquefaction technology, eg small scale liquefiers with liquefaction rates <100 liters / day, based on closed cycle refrigerators. Background technique [0002] Helium is a rare element on Earth and its various scientific and industrial applications continue to drive growing demand. For example, common uses of gas-phase helium include welding, lifting (balloons), and semiconductor or fiber optic manufacturing. In the liquid phase, common uses include refrigeration in certain medical and scientific equipment, cleaning fuel tanks, and basic research in solid-state physics, magnetism, and various other research topics. Due to its widespread use and limited availability of helium, it is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25J1/02
CPCF25J1/0202F25B9/002F25B9/10F25B19/005F25J1/0007F25J1/0225F25J1/0276F25J2270/908F25J2270/912F25B9/12G05D16/206
Inventor C·里略·米连J·塞塞·蒙克卢斯
Owner UNIV DE ZARAGOZA
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