Refrigerating apparatus

A refrigeration device and refrigerant technology, applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of large vibration of expanders, reliability decline, machine damage, etc., to suppress vibration, prevent machine damage, and suppress impact Effect
CN101133291AInactive Publication Date: 2008-02-27DAIKIN IND LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
DAIKIN IND LTD
Publication Date
2008-02-27
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A buffer chamber (71) is connected to the outlet port (33) of an expansion mechanism (60). The buffer chamber (71) is formed in the shape of a cylinder extending in the direction of the flow of a cooling medium, and has a cross-sectional area greater than that of the outlet port (33). A rectifying plate (75) having a mesh section (75a) of a circular shape is provided inside the buffer chamber (71). The variation of pressure is relieved by the supply of pressure and the absorption of pressure by the buffer chamber (71), and also drops of the cooling medium are fined when they are passed through the plate (75).
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Description

technical field

[0001] The present invention relates to a refrigeration unit, and in particular to a measure for reducing pressure pulsations. Background technique

[0002] Hitherto, refrigerating apparatuses for a vapor compression refrigerating cycle using carbon dioxide as a refrigerant are known. Such a refrigeration system includes a refrigerant circuit in which a compressor, a cooler, an expander, and an evaporator are sequentially connected (see, for example, Patent Document 1).

[0003] In the refrigerant circuit of the above-mentioned Patent Document 1, the refrigerant repeats the following cycle. The refrigerant is compressed to a supercritical state by the compressor, and then cooled in the cooler. The cooled refrigerant expands and is reduced in the expander. After being compressed, it evaporates in the evaporator and returns to the compressor. This refrigerating device is used as, for example, a heating device in which a cooler is installed indoors. Patent D...

Claims

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