The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 22, 2022
Filed:
Dec. 11, 2018
Xi'an Jiaotong University, Shaanxi, CN;
XI'AN JIAOTONG UNIVERSITY, Shaanxi, CN;
Abstract
A control method of a transcritical carbon dioxide composite heat pump system is disclosed, wherein the transcritical carbon dioxide composite heat pump system includes: a COmain circuit compressor, an air-cooling-air-cooling recombiner, a supercooling-evaporation recombiner, an evaporator and a COauxiliary compressor; wherein the air-cooling-air-cooling recombiner comprises a COmain circuit, a COauxiliary circuit and a water circuit; the supercooling-evaporation recombiner comprises a COmain circuit supercooling section and a COauxiliary circuit evaporation section. The present invention includes two working modes according to the return water temperature, so that the unit has a wider application range and meets daily needs. There is only one heat exchanger for refrigerant and water. Compared with the three water and refrigerant heat exchangers in the conventional transcritical COcomposite heat pump, the circulating water circuit is a single circuit with one inlet and one outlet.