Rectification type mixed working substance self-stacking gas liquefaction system

A mixed working medium and self-cascading technology, which is applied in the direction of refrigeration and liquefaction, refrigeration components, refrigerators, etc., can solve the problems of many units, difficult control, large initial investment, etc., and achieve the effect of efficient and reliable operation and simplified structure

Inactive Publication Date: 2008-10-01
ZHEJIANG UNIV
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Problems solved by technology

[0002] The mixed working medium gas liquefaction system has been widely used in the natural gas liquefaction industry. Because these traditional mixed working medium gas liquefaction systems adopt a separation process of 2 to 5 stages, there are generally many units, large initial investment, and excessive system circulation. Complicated, difficult to control disadvantages
For small and micro gas liquefaction devices, simplicity of equipment is a very important determining factor. The above-mentioned traditional liquefaction system cannot adapt to the miniaturization and miniaturization of the gas liquefaction system. It is necessary to develop a new type of gas liquefaction system to meet the actual needs

Method used

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  • Rectification type mixed working substance self-stacking gas liquefaction system

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Embodiment Construction

[0008] As shown in the drawings, the present invention has a compressor 1, a condenser 2, a dry filter 3, a rectifying device 4, a first heat exchanger 6, a second heat exchanger 7, and a first throttle valve 9 connected in sequence , the third heat exchanger 8, gas-liquid separator 10; the outlet of compressor 1 is connected with the inlet of condenser 2, the outlet of condenser 2 is connected with the inlet of drier filter 3, and the outlet of drier filter 3 is connected with rectification The first port 34 of the device 4 is connected, the second port 35 of the rectification device 4 is connected with the second port 15 of the first heat exchanger 6, the fifth port 18 of the first heat exchanger 6 is connected with the second heat exchanger 7 connected to the second port 21 of the second heat exchanger 7, the fifth port 24 of the second heat exchanger 7 is connected to the inlet of the first throttle valve 9, and the outlet of the first throttle valve 9 is connected to the s...

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Abstract

The invention discloses a rectified mixed working medium auto-overlapping gas liquefying system, having orderly a compressor, a condenser, a device for drying and filtering, a rectifying device, a first heat interchanger, a second heat interchanger, a first throttle valve, a third heat interchanger and a gas-liquid separator connected. The invention replaces 2-5 level separating process of the conventional mixed working medium gas liquefying system by the rectifying device, cools the raw material gas section by section by three heat interchangers with different temperature, which simplifies the structure of the liquefying system, and removes the lubricating oil entering to the refrigerant in a low pressure portion to guarantee high efficiency and reliable operation of the refrigerator. The system is appropriate for occasions where small and micro-gas liquefying devices are required.

Description

technical field [0001] The invention relates to a gas liquefaction system, in particular to a rectification type mixed working medium self-cascading gas liquefaction system. Background technique [0002] The mixed working medium gas liquefaction system has been widely used in the natural gas liquefaction industry. Because these traditional mixed working medium gas liquefaction systems adopt a separation process of 2 to 5 stages, there are generally many units, large initial investment, and excessive system circulation. Complicated and difficult to control disadvantages. For small and micro gas liquefaction devices, simple equipment is a very important determining factor. The above-mentioned traditional liquefaction system cannot adapt to the miniaturization and miniaturization of the gas liquefaction system. It is necessary to develop a new type of gas liquefaction system to meet the actual needs. [0003] Patent ZL02110664.9 proposes a mixed working medium deep refrigerati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B43/02F25J3/02
Inventor 王勤陈光明张爱民
Owner ZHEJIANG UNIV
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