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In the next few years, China faces huge energy pressure. On the one hand, China's economy to maintain a high rate of growth, on the other hand, it must consider environmental protection and sustainable development issues. So for greater energy efficiency, requiring adjustment of energy structure. 4481
Main body：
First，China's current energy
In the next few years, China faces a huge energy pressure. On the one hand, China's economy to maintain a high rate of growth, on the other hand, it must consider environmental protection and sustainable development issues. So for greater energy efficiency, requiring adjustment of energy structure. With the current housing market-oriented reforms in China, the rapid development of new commercial residential area, with increasing emphasis on urban environmental issues and energy structure adjustment, new district general in Shenyang will no longer run by coal-fired boiler room heating, the manner in which can be economical and clean way to solve these problems the new district heating become a major issue in residential construction. On the other hand, in recent years China's rapid growth rate of residential air-conditioning installation. Shenyang has a residential rate of over 20% of air-conditioning, home air conditioners and currently has a rapid growth rate is still very likely to be the refrigerator, color TV and after a rapid spread of home appliances. This environment is no longer just a residential heating problems, but to consider uniform heating and air conditioning needs. To this end, the use of deep well recharge water source heat pump method may be to meet this demand for residential heating, refrigeration and air conditioning mode. First, the concept of water source heat pump technology and principle Water source heat pump technology is the use of the Earth's surface shallow water such as groundwater, rivers and lakes in the absorption of solar energy and geothermal energy and the formation of low temperature heat resources, and heat pump principle, by a small amount of high energy input, low heat to achieve high heat transfer a technology. Earth's surface shallow water depth of 1000 meters, such as groundwater, surface streams and lakes and oceans absorb the sun's radiation into the Earth's considerable energy and water temperatures are generally very stable. Water source heat pump working principle is the building in the summer heat transferred to the water, because water temperature is low, so it can effectively take the heat in winter, the energy extracted from water by the heat pump principle set out by air or water as refrigerant temperature after upgrading to the buildings. The figure below shows the basic principle of water source heat pump system. Groundwater extraction from the deep into the plate heat exchanger 1, 3, and the building of the water heat exchanger circulating water system, then discharged through the deep underground 2. Residential building by circulating water system pipe network into the households of all households by water source heat pump to produce hot water (winter) or cold (in summer) into the terminal devices, to meet the heating or air conditioning requirements.Deep recharge water source heat pump schematic Design conditions while the figure marked throughout the winter (summer) temperatures. Can be seen from the figure, this approach is indirect in the winter use of groundwater as the medium, taking deep underground sand, stone and heat as heat source for all households to the indoor heat pump heating, while cooling capacity building in the row to obtain into the ground. In the summer, as the media through the water to all households as a cooling water pump, while the building heat into the ground. This winter, heat from the ground to take the cold storage, cold storage to take the summer heat, if the building in winter and summer cooling for the amount of heat is similar to the mainland next year, the basic heat balance, heat is not removed or deposited, the heat will not cause ground contamination. Also, because water temperature in winter than outdoor air temperatures are high, so the efficiency of heat pump in winter than air - water heat pump high, and there is no condensation and other issues. Summer Zeyi 12 ~ 26 ℃ cooling water for the refrigerator, can be very high COP, and even in some cases, this water can be directly used for air conditioning for cooling instead of open water source heat pump. Because groundwater heat transfer through the heat exchanger 3, the rear back underground, only the use of groundwater cooling (heat), without consuming a drop of water resources, groundwater is not in contact with air the entire process, and therefore will not cause groundwater resources pollution.