Title:
HEAT EXCHANGE DEVICE, REFRIGERATION CIRCUIT AND AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/032016
Kind Code:
A1
Abstract:
A heat exchange device, a refrigeration circuit and an air conditioning device. The heat exchange device comprises a can-shaped falling film heat exchanger (1) and an oil return device (2). The can-shaped falling film heat exchanger (1) comprises a housing (11), an inner cylinder (12) and a heat exchange coil (13). A first end in the axial direction of the housing (11) is provided with a liquid inlet (1A) and a gas inlet and outlet port (1C). The heat exchange coil (13) comprises a falling film area heat exchange section and a flooded area heat exchange section. The oil return device (2) comprises a gas guide pipe (21), an oil return part (22) and a filling part (23). The air guide pipe (21) is communicated with the gas inlet and outlet port (1C) of the housing (11) and comprises a first gas guide pipe inlet and outlet port (21A) located in a gas phase area of the inner cylinder (12). The oil return part (22) comprises one or more oil return ports which are communicated with a hollow part of the gas guide pipe (21) between the first gas guide pipe inlet and outlet (21A) and the gas inlet and outlet port (1C). The filling part (23) is arranged in the space of a second end in the axial direction of the housing (11), and in the axial direction of the housing (11), the oil return port and the filling part (23) is arranged between an end of the flooded area heat exchange section close to the falling film heat exchange section and the inner wall surface of a second end of the housing (11).
Inventors:
LU XINGBIN (CN)
HU HAILI (CN)
YUE QINGXUE (CN)
WANG XIAOYONG (CN)
HU HAILI (CN)
YUE QINGXUE (CN)
WANG XIAOYONG (CN)
Application Number:
PCT/CN2023/088155
Publication Date:
February 15, 2024
Filing Date:
April 13, 2023
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F25B39/02; F25B43/02
Foreign References:
| CN218096691U | 2022-12-20 | |||
| CN115289721A | 2022-11-04 | |||
| CN113983723A | 2022-01-28 | |||
| CN105387653A | 2016-03-09 | |||
| CN109579382A | 2019-04-05 | |||
| CN215983340U | 2022-03-08 | |||
| CN203501563U | 2014-03-26 | |||
| CN106766391A | 2017-05-31 | |||
| CN113790614A | 2021-12-14 | |||
| CN204787445U | 2015-11-18 | |||
| JPH06272977A | 1994-09-27 | |||
| GB2231133A | 1990-11-07 | |||
| KR20110010372A | 2011-02-01 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
Download PDF: