| CPC F25B 39/028 (2013.01) [F28F 9/0273 (2013.01); F28D 2021/0068 (2013.01)] | 11 Claims |
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1. A refrigerant distributor comprising:
an outer pipe through which refrigerant flows and to which a plurality of heat transfer pipes are connected at a predetermined spacing from each other;
an inner pipe, housed in the outer pipe, through which the refrigerant flows and that has a refrigerant outflow hole through which the refrigerant flows out of the inner pipe into the outer pipe; and
a structural part with which the inner pipe or the outer pipe is provided, in which the refrigerant enters an undeveloped state of two-phase gas-liquid flow, and through which the refrigerant flows into the inner pipe,
wherein
the refrigerant outflow hole is provided such that an angle θ between a lower end of the inner pipe on a vertical line passing through a center of the inner pipe and a position of presence of the refrigerant outflow hole as seen from the center of the inner pipe falls within a range of 10 degrees≤θ≤80 degrees,
the refrigerant outflow hole comprises a sole refrigerant outflow hole provided in a vertical cross-section of the inner pipe at a position where the refrigerant outflow hole is provided,
the inner pipe is further linearly extended than the outer pipe,
the structural part is the inner pipe thus extended, and
L<10×D, where D is an inside diameter of an extended portion of the inner pipe and L is a length of the extended portion of the inner pipe.
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