Title:
MULTI-PARALLEL CARBON DIOXIDE HEAT PUMP CONTROL METHOD BASED ON TARGET LOAD CONTROL
Document Type and Number:
WIPO Patent Application WO/2021/103054
Kind Code:
A1
Abstract:
Disclosed is a multi-parallel carbon dioxide heat pump control method based on target load control, wherein a multi-parallel carbon dioxide heat pump comprises a carbon dioxide circulation loop, a heat source pipeline and a hot water pipeline, and the control method comprises: adjusting the opening degree of an electronic expansion valve (3) according to the temperature of an inlet of the hot water pipeline, the temperature of an outlet of the hot water pipeline, the flow in the hot water pipeline and a target water outlet temperature set by a user, such that steady-state change of system pressure can be realized by adjusting the electronic expansion valve (3) on the basis of the fluctuation of parameters such as user side temperature and flow, thus stable adjustment of system energy is realized, a target water outlet temperature change curve is rapidly and stably converged to a target value, and the water outlet temperature can be ensured to be rapidly stabilized.
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Inventors:
XIONG DAN (CN)
TANG XIAOLIANG (CN)
PAN HAO (CN)
KANG QIANG (CN)
SONG XIAOFEI (CN)
YOU JUN (CN)
TANG XIAOLIANG (CN)
PAN HAO (CN)
KANG QIANG (CN)
SONG XIAOFEI (CN)
YOU JUN (CN)
Application Number:
PCT/CN2019/122571
Publication Date:
June 03, 2021
Filing Date:
December 03, 2019
Export Citation:
Assignee:
JIANGSU SUJING GROUP CO LTD (CN)
International Classes:
F25B49/02
Foreign References:
| CN103940148A | 2014-07-23 | |||
| CN103926098A | 2014-07-16 | |||
| CN204027841U | 2014-12-17 | |||
| CN108981219A | 2018-12-11 | |||
| CN203190701U | 2013-09-11 | |||
| CN108626778A | 2018-10-09 | |||
| CN203824162U | 2014-09-10 | |||
| CN105823282A | 2016-08-03 | |||
| CN103900281A | 2014-07-02 | |||
| KR101472336B1 | 2014-12-16 |
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT AND TRADEMARK AGENCY, LTD (CN)
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