Title:
HEAT PUMP UNIT, AND DISCHARGE TEMPERATURE CONTROL METHOD AND DEVICE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/155871
Kind Code:
A1
Abstract:
Disclosed are a heat pump unit, and a discharge temperature control method and device therefor. The method comprises: obtaining a condensing temperature and a discharge temperature of the heat pump unit (S101); and according to the condensing temperature and a temperature interval where same is located and the discharge temperature and a temperature interval where same is located, determining a regulation strategy for the discharge temperature of the heat pump unit so as to control, by means of the regulation strategy, the discharge temperature to be within an appropriate range in the process of the heat pump unit regulating the temperature of water to a target temperature (S102), wherein the regulation strategy comprises one of or a combination of more than one of the following: regulating a main throttle valve, regulating an enhanced vapor injection throttle valve, regulating a fan speed, and regulating a variable frequency of a compressor. On the basis of the heat pump unit and the discharge temperature control method therefor, stable operation of the unit can be realized in a high- or low-temperature environment, and the capacity of the unit can be effectively guaranteed.
Inventors:
LIU ZHIWEN (CN)
YANG JIAYU (CN)
LIU YANG (CN)
LI DIANZHI (CN)
ZHANG JING (CN)
YANG JIAYU (CN)
LIU YANG (CN)
LI DIANZHI (CN)
ZHANG JING (CN)
Application Number:
PCT/CN2019/124777
Publication Date:
August 06, 2020
Filing Date:
December 12, 2019
Export Citation:
Assignee:
GUANGDONG PHNIX ENERGY TECH CO LTD (CN)
International Classes:
F25B49/02
Foreign References:
| CN109945562A | 2019-06-28 | |||
| CN108362051A | 2018-08-03 | |||
| CN108562077A | 2018-09-21 | |||
| CN105972860A | 2016-09-28 | |||
| CN108800563A | 2018-11-13 | |||
| CN108731293A | 2018-11-02 | |||
| CN109282545A | 2019-01-29 | |||
| CN103884140A | 2014-06-25 | |||
| KR20150086589A | 2015-07-29 |
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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