Heat exchanger

摘要

A heat exchanger includes a shell, a refrigerant distribution assembly and a heat transferring unit. The refrigerant distribution assembly includes a first tray part and second tray parts. The first tray part continuously extends generally parallel to the longitudinal center axis of the shell to receive a refrigerant that enters the shell. The second tray parts are disposed below the first tray part to receive the refrigerant discharged from first discharge apertures such that the refrigerant accumulated in the second tray parts does not communicate between the second tray parts. The second tray parts are aligned along a direction generally parallel to the longitudinal center axis of the shell. The heat transferring unit is disposed below the second tray parts so that the refrigerant discharged from second discharge apertures of the second tray parts is supplied to the heat transferring unit.

主权项

1. A heat exchanger adapted to be used in a vapor compression system, comprising:
a shell with a longitudinal center axis extending generally parallel to a horizontal plane; a refrigerant distribution assembly including
a first tray part disposed inside of the shell and continuously extending generally parallel to the longitudinal center axis of the shell to receive a refrigerant that enters the shell, the first tray part having a plurality of first discharge apertures disposed in a bottom surface of the first tray part, a top of the first tray part being open to a space inside of the shell;a plurality of second tray parts disposed inside of the shell below the first tray part to receive the refrigerant discharged from the first discharge apertures such that the refrigerant accumulated in the second tray parts does not communicate between the second tray parts, the second tray parts being aligned along a direction generally parallel to the longitudinal center axis of the shell, each of the second tray parts having a plurality of second discharge apertures; and a heat transferring unit disposed inside of the shell below the second tray parts so that the refrigerant discharged from the second discharge apertures of the second tray parts is supplied to the heat transferring unit, wherein the refrigerant distribution assembly further includes an inlet part having an inlet pipe part extending generally parallel to the longitudinal center axis of the shell, at least the bottom surface of the first tray part is disposed below the inlet pipe part, and no vertical gap is formed between the bottom surface of the first tray part and the inlet pipe.