US 11,926,192 B2
Refrigerant heat exchange apparatus and indirect heat pump system
Duo Wu, Shanghai (CN); Zhaokai Yu, Shanghai (CN); Qi Liu, Shanghai (CN); and Jingyang Mu, Shanghai (CN)
Assigned to AIR INTERNATIONAL THERMAL SYSTEMS R&D (SHANGHAI) CO., LTD, (CN)
Appl. No. 18/258,126
Filed by AIR INTERNATIONAL THERMAL SYSTEMS R&D (SHANGHAI) CO., LTD, Shanghai (CN)
PCT Filed Apr. 6, 2022, PCT No. PCT/CN2022/085368
§ 371(c)(1), (2) Date Jun. 16, 2023,
PCT Pub. No. WO2023/060852, PCT Pub. Date Apr. 20, 2023.
Claims priority of application No. 202111186309.0 (CN), filed on Oct. 12, 2021.
Prior Publication US 2023/0398831 A1, Dec. 14, 2023
Int. Cl. B60H 1/00 (2006.01)
CPC B60H 1/00342 (2013.01) [B60H 1/00485 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A refrigerant heat exchange apparatus, comprising:
an apparatus body, wherein a cold water unit and a hot water unit are disposed in the apparatus body, the cold water unit comprises a first cavity and a second cavity, the hot water unit comprises a third cavity and a fourth cavity, a first water inlet is disposed on the first cavity, a first water inlet is disposed on the third cavity, a first water outlet is disposed on the second cavity, a first water outlet is disposed on the fourth cavity, the first water inlet of the first cavity and the first water outlet of the second cavity are connected to a first heat exchanger, the first water inlet of the third cavity and the first water outlet of the fourth cavity are connected to a second heat exchanger, and a second water outlet and a second water inlet that are used for connecting a load are disposed on the apparatus body;
a first communication cavity communicating with the first cavity and the third cavity, wherein the second water outlet communicates with the first communication cavity;
a second communication cavity communicating with the second cavity and the fourth cavity, wherein the second water inlet communicates with the second communication cavity; and
first valve cores, wherein a first valve core of the first valve cores is disposed in the first cavity, a first valve core of the first valve cores is disposed in the second cavity, a first valve core of the first valve cores is disposed in the third cavity, a first valve core of the first valve cores is disposed in the fourth cavity, and the first valve cores can be controlled ON and OFF relative to the first communication cavity and ON and OFF relative to the second communication cavity;
wherein a second valve core is disposed on the apparatus body and can be controlled ON and OFF at the first water inlet and ON and OFF at the first water outlet; wherein a mounting cavity is disposed on the apparatus body; a first through hole, a second through hole, a third through hole, and a fourth through hole are disposed in the mounting cavity; the first through hole communicates with the first cavity; the second through hole communicates with the first cavity through the first communication cavity; the third through hole communicates with the second cavity; the fourth through hole communicates with the second cavity through the second communication cavity; the second valve core is disposed in the mounting cavity; and the second valve core is configured to rotate to make the first through hole communicate with the fourth through hole or make the second through hole communicate with the third through hole;
wherein the first communication cavity communicates with the first cavity through a seventh through hole and communicates with the third cavity through a seventh through hole, and the second communication cavity communicates with the second cavity through a seventh through hole and communicates with the fourth cavity through a seventh through hole; and the four cavities are each provided with a flat mounting surface at a position of the seventh through hole, a mounting plate is detachably disposed on the mounting surface, the mounting plate has an abutting plane abutting against the mounting surface and a matching arc surface matching the first valve core, a sealing ring is disposed between the abutting plane and the mounting surface, the mounting plate is formed with an avoidance hole at a position corresponding to the seventh through hole, and the avoidance hole communicates with the abutting plane and the matching arc surface.