Control method for optimization of ground-source heat pump system assisted by cooling towers according to four states

• Main Authors: DONG YUHANG, LI YANGYANG, YU HAITAO, LI DUODE, FANG YINYIN, ZHU WEIGUO
• Format: Patent
• Language: Chinese; English
• Published: 04.09.2018
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS,e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USERAPPLICATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; VENTILATING; WEAPONS

The invention discloses a control method for optimization of a ground-source heat pump system assisted by cooling towers according to four states, and relates to the technical field of ground-source heat pump system control. The method comprises control over the following four states, namely, after the cooling time of a buried pipe system reaches 860 hours, the cooling tower connected to a screw type ground-source heat pump unit is loaded; when the water temperature of an inlet of the condensing end of the screw type ground-source heat pump unit lasts for 5 min to be 37 DEG C or more, a cooling tower connected to a centrifugal chiller is loaded; when the water temperature of an outlet of a condenser of the screw type ground-source heat pump unit lasts for 5 minutes to be 30 DEG C or lower,a cooling tower connected to the screw type ground-source heat pump unit is unloaded; and when the water temperature of an outlet of a condenser of the centrifugal chiller lasts for 5 minutes to be 32 DEG C or lower, a cooli