Air conditioner and heating tail end pipeline anti-freezing device

• Main Authors: CAI LITING, TIAN LEI
• Format: Patent
• Language: Chinese; English
• Published: 21.07.2023
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; DOMESTIC HOT-WATER SUPPLY SYSTEMS; DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS; ELEMENTS OR COMPONENTS THEREFOR; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

The utility model relates to the technical field of pipeline anti-freezing, in particular to an air conditioner and heating tail end pipeline anti-freezing device. The air conditioner and heating tail end pipeline anti-freezing device comprises a water supply vertical pipe and a water return vertical pipe which are vertically arranged on a tail end water supply main pipe and a tail end water return main pipe respectively, and automatic exhaust valves are arranged at the upper end ports of the water supply vertical pipe and the water return vertical pipe respectively. A first anti-freezing circulating pipe is connected between the upper end of the water supply vertical pipe and the upper end of the water return vertical pipe, and a first switch valve is arranged on the first anti-freezing circulating pipe in a communicating mode. The device has the advantages of being simple and reasonable in structural design, effectively solving the problem that tail end pipelines of an air conditioner and a heating water sy