3results about How to "Resolve freeze" patented technology

The utility model provides an emergency water supply guarantee system suitable for drinking water safety in rural areas in alpine regions, which is characterized by comprising a semi-buried insulated house, a stainless steel insulated water tank, a variable-frequency constant-pressure system, a vacuum water return system, a water volume, water quality and water pressure series on-line monitoring and sensing system and a PLC (programmable logic controller) control platform. A stainless steel heat preservation water tank, a variable-frequency constant-pressure system, a vacuum water return system, a water volume, water quality and water pressure series online monitoring and sensing system and a PLC control platform are arranged in the semi-buried heat preservation house. The utility model provides an emergency water supply guarantee system suitable for drinking water safety in rural areas in alpine regions, and mainly solves the problems of water supply pipeline freezing and insufficient water supply stability under extremely cold conditions in winter. Through an integrated innovative design, a water supply guarantee system comprising heat preservation protection, pressure regulation and control, intelligent emptying, online monitoring and automatic control is constructed, and the cold resistance and the operation reliability of a pasturing area water supply system are effectively improved.

The application discloses an air conditioner and a freeze-proof control method of the air conditioner. In a refrigeration mode, a current exhaust temperature, a current outdoor coil temperature and a current indoor coil temperature are obtained; a current exhaust superheat is obtained according to the current exhaust temperature and the current outdoor coil temperature; whether the freeze-proof entering condition is met is judged according to the current indoor coil temperature and the current exhaust superheat; when the freeze-proof entering condition is met, the freeze-proof control of the air conditioner is realized by controlling the rotating speed of the compressor and the outdoor fan. The technical scheme of the application can improve the accuracy of the judgment result by judging whether the freeze-proof entering condition is met through the indoor coil temperature and the exhaust superheat of the air conditioner, and can greatly improve the timeliness of the freeze-proof control by simultaneously controlling the rotating speed of the outdoor fan and the compressor to realize the freeze-proof control of the air conditioner, so that the effectiveness of the freeze-proof control is guaranteed.