Solar home heating

A solar heat pump works is a solar heat pump air heat pump system and solar collector system into one of the sun radiation, the system is converted to solar heat pump principle heating; in the absence of solar radiation, system conversion air heat pump heating principle. Heating device ensures a stable, but also has higher relative air heat pump and solar collector system heating efficiency, energy saving effect is remarkable. How it works: using the principle of the Carnot cycle, the solar panels and solar air collector made of evaporator, the collector of the refrigerant in the evaporator refrigerant directly absorb solar radiation (solar heat pump operating mode) and air (air heat pump operating mode) low temperature evaporation, compressed by the compressor discharge temperature high-pressure refrigerant vapor is condensed into the hot condenser heat the condensate in the role of high and low pressure in the evaporator is sucked through the thermal expansion valve to cool down into the thermal evaporation, thereby forming a heat pump cycle. Realized spend a small amount of power, the large amount of heat from low temperature heat source to the heat source of the transmission, divided by flower heat transport pump energy called EER (COP). Typically, the solar heat conditions, COP values ??up to 6-10. Second, the advantages of a solar heat pump products, the flat plate solar collector and the collector plate core heat pump evaporator tube wing is made integrally formed evaporator, heat uniformly and intimately, the entire surface of the collector plate core temperature uniformity, migration greatly reduces the surface heat loss. Meanwhile, the vapor phase change heat transfer is several times the convection heat transfer, relatively high efficiency solar collector system. 2, the solar heat conditions, the refrigerant evaporation temperature relative to ambient temperature 5-15 ℃, and air heat pump evaporation temperature than the ambient temperature is low 10-15 ℃, so the solar heat pump COP value is the value of air-source heat pump system COP 2 times. While overcoming air heat pump evaporator defrosting in winter and other shortcomings. 3, the use of refrigerant (R134a, etc.) as a heat pump working fluid, R134a the freezing temperature of -103 ℃, completely solve the freezing problem of flat plate solar collectors. 4, solar collector evaporator is always at a low temperature (near ambient temperature) operation, solar thermal efficiency as high as 75%, compared with conventional solar collectors 40% -45% of the light and heat efficiency is improved. Solar heat pump is the most efficient and most environmentally friendly energy-saving technologies, energy-efficient solar collector system than 2 times higher than the 50% energy saving air source heat pump. Third, the solar assisted heat pump heating principle and host parameters 1, the solar heat pump heating unit works evaporator plate solar collector plate collector plate core heat pump is made integrally formed tube collectors wing evaporator, and a compressor, thermal expansion valve, dry filters, reservoir and other components together with the outdoor unit. The heat pump condenser made of the indoor unit in the tube and fin condenser, indoor unit in addition to tube and fin condenser, there are circulating fan, auxiliary heat source and a controller. It is connected by a steam pipe, tubing and a power control line between the outdoor unit and indoor unit. Heat pump uses refrigerant substance R134a, vacuum injection. The above components of household solar heat pump heating unit. The sun to heat the evaporator tube wing plate core, this time on the heat-absorbing fins solar selective absorbing coating is irradiated through the glass cover of solar radiation absorbed and converted into heat energy, and complete absorption of solar energy is converted into heat, while the heat is transferred to the evaporator heat transfer tube refrigerant inside the refrigerant, so that heat from the liquid into a vapor state; the role of imported solar collector evaporator thermal expansion valve, the refrigerant vapor to maintain a certain degree of superheat into the compression machine, after compressed by the compressor, a high-temperature high-pressure refrigerant vapor, condensed in the condenser heat into the room, heated by a circulating fan rotating blowing air condenser fins, condensate into the reservoir, the role of high and low pressure in the By cooling down the thermal expansion valve into the evaporator to evaporate, thereby forming a heat pump cycle. With indoor heating room temperature rising, the discharge pressure and exhaust gas temperature and the condenser condensing pressure and condensing temperature of the compressor is also rising, in order to adapt to the new conditions kinetic and thermodynamic equilibrium, until heating room temperature reaches the set temperature. Such as solar radiation energy is insufficient to heat the heating room temperature reaches the set temperature, start auxiliary heat source. Control the start and stop auxiliary heat source, solar energy heat pump heating system according to room temperature automatically by the controller, provided that the priority use of solar energy, solar energy shortfall by the auxiliary heat source. 2, solar heat pump heating Features A, this product will heat pump technology used in solar thermal field, the flat plate solar collectors plate evaporator core and heat collector panels made of integrally formed evaporator tube collectors wing, and a compressor, thermal expansion valve, dry filters, reservoir and other components together with the outdoor unit, mounted on the outdoor facades; the heat pump condenser made of the indoor unit in the tube and fin condensers, realize solar light heat transfer and heat transfer, to achieve a solar heating. B, and flat plate solar collector and the collector plate core heat pump evaporator tube wing is made integrally formed evaporator, heat uniformly and intimately, the entire surface of the collector plate core temperature uniformity, greatly reducing the migration of surface heat loss . Meanwhile, the vapor phase change heat transfer is convection heat transfer several times, relatively high efficiency solar hot water heating system. C, the use of refrigerant (R134a, etc.) as a heat pump working fluid, R134a the freezing temperature of -103 ℃, completely solve the freezing problem of flat plate solar collectors. D, solar collector evaporator is always at a low temperature (near ambient temperature) operation, solar thermal efficiency up to 70% compared to conventional solar collectors 40% -45% thermal efficiency (winter) greatly increased. E, solar heat pump heating unit consists of an outdoor unit and an indoor unit composition, the middle two small brass and a wire connection device is simple, easy to install, easy to implement and building integrated solar heating. F, flat solar heat pump heating system should be set up auxiliary heat source, priority use of solar energy, to achieve all-weather heating. G, automatic control, simple operation, safe and reliable.