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1. (WO2017151626) HEAT EXCHANGE DEVICE SUITABLE FOR LOW PRESSURE REFRIGERANT

Pub. No.:    WO/2017/151626    International Application No.:    PCT/US2017/019965
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: F28D 7/16
Applicants: JOHNSON CONTROLS TECHNOLOGY COMPANY
SU, Xiuping
WANG, Li
Inventors: SU, Xiuping
WANG, Li
Title: HEAT EXCHANGE DEVICE SUITABLE FOR LOW PRESSURE REFRIGERANT
Abstract:
Embodiments of the present disclosure are directed to a heat exchange device (200) that includes a condenser (201) configured to receive a refrigerant, an evaporator (203) having an evaporation tube bundle (215,216), a throttling device (208) configured to receive a first portion of the refrigerant from the condenser and to expand the first portion of the refrigerant before directing the first portion to the evaporator, and an ejector (202) having a high pressure conduit (211), a low pressure conduit (219), and an outlet conduit (217), the ejector is configured to receive the first portion from the throttling device or a second portion of the refrigerant from the condenser via the high pressure conduit, receive a third portion of the refrigerant from the evaporator via the low pressure conduit, mix the first portion or the second portion with the third portion to form a mixed refrigerant, and direct the mixed refrigerant to the evaporator via the outlet conduit.