OIL-FREE BEARING LIQUID SUPPLY AIR-CONDITIONING SYSTEM AND CONTROL METHOD THEREFOR

WIPO Patent Application WO/2024/093435

A1

An oil-free bearing liquid supply air-conditioning system (1000) and a control method therefor. The system (1000) comprises: a box system (200), which comprises a compressor (42), a condenser (19), an evaporator (29), an economizer (23), and refrigeration liquid pumps (20); and a refrigeration system (31), which comprises a first bearing lubrication liquid supply path (125) from the condenser (19) to the compressor (42), and a second bearing lubrication liquid supply path (126) from the condenser (19) to the compressor (42), wherein at least two refrigeration liquid pumps (20) are arranged in the second bearing lubrication liquid supply path (126), the at least two refrigeration liquid pumps (20) are arranged in parallel, and the at least two refrigeration liquid pumps (20) include a main refrigeration liquid pump (201) and at least one standby refrigeration liquid pump (202).

CAO CHENGLIN (CN)
FENG XU (CN)
CONG HUI (CN)
CHEN JIANXING (CN)
ZHAO PENGFEI (CN)
MA ZHEN (CN)
CHENG ZHENJUN (CN)

PCT/CN2023/112986

May 10, 2024

August 14, 2023

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QINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD (CN)

F24F11/84; F24F11/49; F24F11/52; F24F11/61; F24F11/64; F24F11/85; F24F11/86; F24F140/12

CN115751661A	2023-03-07
CN218846294U	2023-04-11
CN106642778A	2017-05-10
CN104105931A	2014-10-15
CN112728794A	2021-04-30
CN105164476A	2015-12-16
CN1322289A	2001-11-14
JP2006214610A	2006-08-17
US20190257302A1	2019-08-22

BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)

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