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Low-temperature liquid filling method and system for detecting evaporation rate of low-temperature heat insulation gas bottle

A low-temperature thermal insulation, low-temperature liquid technology, applied in container filling method, container discharge method, gas/liquid distribution and storage, etc., can solve problems such as long detection time

Active Publication Date: 2019-02-22
XI AN JIAOTONG UNIV +1
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  • Claims
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Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the present invention proposes a low-temperature liquid filling method and its filling system for detecting the evaporation rate of low-temperature adiabatic gas cylinders to solve the problem of long detection time

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  • Low-temperature liquid filling method and system for detecting evaporation rate of low-temperature heat insulation gas bottle
  • Low-temperature liquid filling method and system for detecting evaporation rate of low-temperature heat insulation gas bottle
  • Low-temperature liquid filling method and system for detecting evaporation rate of low-temperature heat insulation gas bottle

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Embodiment Construction

[0040] Specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although specific embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and is not limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0041] It should be noted that certain terms are used in the specification and claims to refer to specific components. Those skilled in the art should understand that they may use different terms to refer to the same component. The specification and claims do not use differences in nouns as a way of distinguishing components, but use differences in functions of components as a criterion for distinguishing. "Includes" or "comprises" mentioned throughout the spe...

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Abstract

The invention discloses a low-temperature liquid filling method and system for detecting the evaporation rate of a low-temperature heat insulation gas bottle. The method comprises the following stepsthat the low-temperature heat insulation gas bottle is preheated, an emptying valve and a bypass valve are opened, the bypass valve communicates with a low-temperature storage tank, a main valve is closed, the bypass valve conducts second-time pre-cooling on the low-temperature heat insulation gas bottle with the first preset filling mass rate, large-flow filling of the low-temperature heat insulation gas bottle is conducted, the aperture of an electric valve is increased, the main valve is opened, the bypass valve is closed, the low-temperature heat insulation gas bottle is filled with liquidfrom the low-temperature storage tank with the second preset filling mass rate through the main valve via a rotational flow generator, and the process is stopped when the liquid mass in the low-temperature heat insulation gas bottle reaches the 75% filling rate; and the aperture of the electric valve is reduced, the low-temperature heat insulation gas bottle is filled with the liquid from the low-temperature storage tank with the third preset filling mass rate through the main valve via the rotational flow generator, the main valve is closed after filling is conducted to the rated filling rate, standing is conducted for the preset time till the inner liquid surface stops rotating, and filling is finished.

Description

technical field [0001] The invention belongs to the technical field of low-temperature heat-insulating gas cylinders, in particular to a low-temperature liquid filling method and a filling system for detecting the evaporation rate of low-temperature heat-insulating gas cylinders. Background technique [0002] Cryogenic insulating gas cylinders are cryogenic equipment with important industrial applications, mainly used to store liquid cryogenic products obtained through cryogenic refrigeration technology, such as liquid nitrogen, liquid oxygen, liquid helium, liquid hydrogen, and liquefied natural gas. While storing these low-temperature products, because their temperature is much lower than the ambient temperature, during the storage process, external heat will be transmitted into the container through the container wall, causing the evaporation of the low-temperature liquid, which will cause the internal pressure of the container to rise and Cause a part of the loss of cryo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C5/02F17C13/00F17C13/02F17C13/04
CPCF17C5/02F17C13/00F17C13/002F17C13/02F17C13/025F17C13/04F17C2221/014
Inventor 张剑飞魏国盟蔡延彬朱华强侯冀川屈治国何泾渭张夏冯永康刘剑桢冯仲勋赖学良杨中志吕浩李朝
Owner XI AN JIAOTONG UNIV
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