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Title:
FREQUENCY DYNAMIC OPTIMIZATION AND CONTROL METHOD FOR FREQUENCY CONVERSION ENHANCED VAPOR INJECTION HEAT-PUMP WATER HEATER
Document Type and Number:
WIPO Patent Application WO/2019/080275
Kind Code:
A1
Abstract:
The invention relates to a dynamic optimization and control method of the frequency of a frequency conversion enhanced vapor injection heat-pump water heater. The frequency conversion enhanced vapor injection heat-pump water heater comprises a frequency conversion compressor (1), an exhaust temperature sensor controller (2), a water tank temperature sensor (4), a water tank (5), a condenser (6), an auxiliary electronic expansion valve (7), an economizer (8), a main electronic expansion valve (9), an evaporator (10) and an outdoor temperature sensor (11). The dynamic optimization and control method are characterized in that in the whole operation process of the heat-pump water heater, the work frequency of the frequency conversion compressor (1) is dynamically optimized and adjusted, meanwhile, the opening degrees of the main electronic expansion valve (9) and the auxiliary electronic expansion valve (7) of a refrigeration system are correspondingly controlled, and the total energy consumption in the whole operation process of the heat-pump water heater is minimum. The dynamic optimization and control method have the main beneficial effects that the work frequency of the frequency conversion compressor (1) is dynamically optimized in the whole operation process of the frequency conversion enhanced vapor injection heat-pump water heater, meanwhile, the opening degrees of the main electronic expansion valve (9) and the auxiliary electronic expansion valve (7) are controlled with the optimal energy efficiency ratio as the target, and the total energy consumption in the whole operation process is minimum.

Inventors:
XU YANSHENG (CN)
XU XUYAN (CN)
YU HUAMING (CN)
ZHANG MING (CN)
ZHANG CHAO (CN)
WEN CHUNHUA (CN)
WENG YANGUI (CN)
Application Number:
CN2017/115117
Publication Date:
May 02, 2019
Filing Date:
December 08, 2017
Export Citation:
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Assignee:
SHUNDE POLYTECHNIC (CN)
International Classes:
F24H9/20
Foreign References:
CN104633942A2015-05-20
CN204830557U2015-12-02
CN205783233U2016-12-07
JP2015113996A2015-06-22
Attorney, Agent or Firm:
FOSHAN KESHUN PATENT AGENCY (CN)
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