8results about How to "Resolve freeze" patented technology

The anti-leakage natural gas anti-freezing valve comprises a valve pipe, a base, a heating box and a heating mechanism, the heating box is installed on the top of the base and located below the valve pipe, and a valve rod is installed in the middle of the top face of the valve pipe; the heating mechanisms are symmetrically installed on the valve pipe, each heating mechanism comprises an upper heating plate, a lower heating plate, a liquid return ring, a liquid guide ring, an upper guide plate and a lower guide plate, the upper heating plates and the lower heating plates are both of an arc-shaped structure and are alternately installed on the surface of the valve pipe, and the liquid return rings are installed at the ends of the valve pipe and are connected with the upper heating plates and the lower heating plates correspondingly; the liquid guide ring is installed on the top of the valve pipe and arranged on the valve rod in a sleeving mode, and the two sides of the liquid guide ring are connected with the upper guide plate. The heating box is arranged below the valve pipe, the heating liquid circulates in the heating box and is heated, the heated liquid is led out through the pump machine, the heating mechanism is installed on the valve pipe, the heating liquid circulates in the heating mechanism, the temperature of the valve pipe, the valve element and the valve rod can be increased, and the problem that the valve is frozen in cold weather is solved.

The present invention relates to a double-water-tank heat collection and heating system based on refrigerant and an operation method, wherein the double-water-tank heat collection and heating system comprises a PVT heat collection system and a heat pump heat supply and heating system; the PVT heat collection system comprises a PVT heat collector module, a heat collection module and a refrigerant circulation module; the refrigerant circulation module is connected to the heat collection module through the PVT heat collector module; the heat pump heat supply and heating system comprises a PVT heat collector module, a refrigerant temperature reduction and pressure reduction module, an air-cooled heat exchange module, a heat release module and a refrigeration module; the refrigerant temperature reduction and pressure reduction module is connected to the heat release module through the PVT heat collector module or the air-cooled heat exchange module; the refrigerant temperature reduction and pressure reduction module is also connected to the refrigeration module. The beneficial effects of the present invention are: the present invention can meet the needs of users for hot water at any time throughout the year and cooling in summer, and also solves the freezing problem that may occur in the heat collector in winter.

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.

The invention relates to a rural household anti-freezing electromagnetic faucet device suitable for severe cold areas. The electromagnetic valve combined connection and switch linkage control device system is characterized in that the electromagnetic valve combined connection and switch linkage control device system is installed in an anti-freezing household meter well, a normally-closed electromagnetic valve and a normally-open electromagnetic valve are combined through a tee joint, a water inlet is connected with a household water inlet pipe, a water outlet is connected with a faucet pipeline, a water drainage opening is formed below an anti-freezing layer for water drainage, and power distribution is achieved through a 12V-36V universal safety power adapter. A rotary electric switch (simulation faucet) is used for controlling on-off, people can normally use water in extremely cold weather, after water is cut off, remaining water, higher than the ground frozen soil layer, of the water pipe flows back and infiltrates to keep the water outlet pipe hollow, and therefore the anti-freezing purpose is achieved. The device is safe, simple, water-saving, power-saving and convenient to install, and has a wide market prospect.

The invention provides an air conditioner control method and device, electronic equipment and a storage medium, and relates to the technical field of air conditioners. Comprising the steps that under the condition that the air conditioner meets the defrosting condition, a heating function on an outdoor fan is started; according to the first outdoor environment temperature meeting the defrosting condition, the initial rotating speed and the rotating speed correction value corresponding to the outdoor fan are determined; and controlling the outdoor fan to rotate reversely based on the initial rotating speed and the rotating speed correction value. Therefore, in the low-temperature heating period, the rotating speed of reverse rotation of the outdoor fan is controlled, so that the air speed and the airflow temperature can be controlled, hot airflow pulsation is utilized for defrosting, the problem that the outdoor heat exchanger is frozen under the severe frosting working condition is effectively solved, and the heating effect and the system reliability in the heating operation period of the air conditioner are effectively improved.

The invention belongs to the technical field of coal-fired power generation energy conservation and emission reduction, and particularly relates to a coal-fired boiler waste heat comprehensive utilization system and method adapting to seasonal temperature changes. Comprising a steam turbine and a coal-fired boiler, the system further comprises a bypass flue condensation water heat regeneration system A, a summer peak condensation water heat regeneration system B, a heat medium water air heater heat compensation system C and a winter air heater anti-freezing system D; boiler flue gas is recycled and utilized through a bypass flue condensation water heat regeneration system A and a heating medium water air heater heat compensation system C. When the air temperature is high in summer, a condensation water heat regeneration system B works at the peak in summer, the power capability of a low-pressure cylinder of a steam turbine is further improved, and coal consumption is reduced. At low temperature in winter, the winter air heater anti-freezing system D works to provide a heat source for the heat medium water air heater heat compensation system C; the flue gas heat utilization efficiency is improved, and the problem that flue gas waste heat cannot be fully utilized in summer and winter is solved.