Refrigeration cycle utilizing a mixed inert component refrigerant

A refrigeration cycle, refrigerant technology, applied in refrigerators, refrigeration and liquefaction, irreversible cycle compressors, etc., can solve problems such as high cost

Active Publication Date: 2008-02-06
EDWARDS VACUUM LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, cleanroom environments are disadvantaged by the use of conventional refrigeration systems utilizing conventional refrigerants when repairs to refrigeration systems cause costly production stoppages
[0005] Possibility to find further disadvantages in terms of temperature limitations achievable with traditional refrigerants

Method used

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  • Refrigeration cycle utilizing a mixed inert component refrigerant
  • Refrigeration cycle utilizing a mixed inert component refrigerant
  • Refrigeration cycle utilizing a mixed inert component refrigerant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0089] In one embodiment, including CO 2 The mixed gas refrigerant with Xe does not freeze when cooled to a low temperature of 167K at 0.1 MPa or to a low temperature of 158K at 0.4 MPa. The composition is listed in Table 1.

[0090] Table 1

[0091] ingredients

[0092] In another embodiment, including N 2 The mixed gas refrigerant of O and Xe is cooled to a low temperature of 166K without freezing. Its composition is illustrated in Table 2.

[0093] Table 2

[0094] ingredients

[0095] In a further embodiment, including N 2 O.CO 2 The mixed gas refrigerant with Xe is cooled to a low temperature of 166K without freezing. Its composition is illustrated in Table 3.

[0096] table 3

[0097] ingredients

[0098] In a further embodiment, including CO 2 The mixed gas refrigerant of , Xe and Kr is cooled to a low temperature of 114K without freezing. Its composition is illustrated in Table 4.

[0099] Table 4

[0100] ingredients...

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PUM

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Abstract

This disclosure is directed to a cooling system including a first refrigeration cycle and a second refrigeration cycle. The first refrigeration cycle has a first refrigerant and the second refrigeration cycle has a second refrigerant comprising a mixture of cryogenic components. This disclosure is also directed to a cooling system including a first refrigeration cycle and a second refrigeration cycle. The first refrigeration cycle has a first refrigerant. The second refrigeration cycle has a second refrigerant including inactive components. The second refrigerant is free of perfluorocarbons, perchlorofluorocarbons and hydrocarbons. At least a portion of the second refrigerant is condensed in the second refrigerant cycle.

Description

technical field [0001] This disclosure generally relates to refrigeration cycles and refrigerants used therein. Background technique [0002] Cryogenic and cryogenic refrigeration are commonly used to cool fluid streams for cryogenic separations, to liquefy gases, to provide cooling for biological freezers, to control reaction rates in chemical processes, to provide cooling for materials property analysis equipment, to capture water vapor for use in Generates low vapor pressure in vacuum processing processes, cools articles in manufacturing processes such as semiconductor wafer processing, cools imaging devices, subatomic particle and photon detectors, cools chemical analysis equipment and cools superconducting cables and devices. Conventional systems use perchlorofluorocarbons, chlorofluorocarbons, fluorocarbons, perfluorocarbons, and hydrocarbons as refrigerants. However, these refrigerants have some disadvantages. [0003] Conventional refrigerants are reactive and may ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25J1/00C09K5/00C09K5/04F25B7/00F25B9/00F25J1/02
CPCF25B9/006C09K5/041F25B7/00C09K2205/106C09K2205/13C09K2205/132C09K5/00C09K5/04F25B1/00
Inventor 凯文·P·弗林米克汉尔·博阿斯基奥利·波德特切尔尼夫
Owner EDWARDS VACUUM LLC
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