Title:
WATER CHILLER-HEATER UNIT OF AIR COOLED HEAT PUMP AND DEFROSTING CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/050073
Kind Code:
A1
Abstract:
A water chiller-heater unit of an air cooled heat pump and a defrosting control method therefor. The water chiller-heater unit of the air cooled heat pump comprises a first heating water system and a second heating water system. A first air conditioning heat exchanger (17) in the first heating water system and a second air conditioning heat exchanger (27) in the second heating water system share a fan (10). The method comprises the following steps: detecting an outdoor environment temperature T4 in real time, and detecting running parameters of a water chiller-heater unit of an air cooled heat pump in real time; when the water chiller-heater unit of the air cooled heat pump enters a defrosting mode, determining, according to T4, whether to control the water chiller-heater unit of the air cooled heat pump to run in an alternate defrosting manner; and if the water chiller-heater unit of the air cooled heat pump runs in the alternate defrosting manner, controlling, according to T4 and the running parameters of the water chiller-heater unit of the air cooled heat pump, a first heating water system and a second heating water system to run in an alternate heating manner, such that an air conditioning heat exchanger not in a heat exchange operation state performs defrosting by means of continuous running of a fan. The method performs defrosting by using continuous running of a fan due to switching between systems, thereby improving the heating effect of a water chiller-heater unit of an air cooled heat pump, and improving the user experience.
Inventors:
LI QIANSHENG (CN)
QIAO YU (CN)
HE LI (CN)
WEI HEQING (CN)
QIAO YU (CN)
HE LI (CN)
WEI HEQING (CN)
Application Number:
PCT/CN2016/096051
Publication Date:
March 30, 2017
Filing Date:
August 19, 2016
Export Citation:
Assignee:
GD MIDEA HEATING & VENTILATING EQUIPMENT CO LTD (CN)
MIDEA GROUP CO LTD (CN)
MIDEA GROUP CO LTD (CN)
International Classes:
F25B47/02; F25B49/02
Foreign References:
| CN105318618A | 2016-02-10 | |||
| CN105115209A | 2015-12-02 | |||
| CN105157293A | 2015-12-16 | |||
| CN105115211A | 2015-12-02 | |||
| CN203893480U | 2014-10-22 | |||
| CN2935006Y | 2007-08-15 | |||
| CN104344619A | 2015-02-11 | |||
| CN103363614A | 2013-10-23 | |||
| CN104180570A | 2014-12-03 | |||
| JP2014119232A | 2014-06-30 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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