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The scientific development concept for ground-source heat pump to promote the premise of
At the national renewable energy strategy, driven by ground-source heat pump industry, ushered in the development of an excellent opportunity. However, geothermal resources, a strong regional differences and makes it difficult to obey uniform rules throughout. How to guide rational development and use of this community resource, local government departments have taken relevant measures to guide the parties to act to ensure that ground-source heat pump industry, stable and healthy development.

    Beijing: Prohibition of water supply and water source heat pump new land subsidence area

    To protect groundwater resources in Beijing, the Beijing Municipal Water Authority, the Urban Development and Reform Commission and other six departments jointly issued a circular calling for the future construction of water source heat pump projects, we must give full consideration to the hydro-geological conditions and groundwater sources affected. Water source heat pump in the city to prohibit the development of designated areas such as water resources, land subsidence zones shall not be a new related projects.

    Beijing Water Authority introduced in 2006, Beijing had issued "guidance on the development of heat pump system views." Heat Pump Technology in Beijing has been rapidly applied to alleviate energy shortages play an active role, but some areas have water source heat pump use underground water, the groundwater recharge is difficult to return to irrigation and underground water temperature is too large and so on.

    For the protection of groundwater resources, the Beijing Municipal Water Conservancy conducted scientific research departments Plains groundwater heat pump air conditioning system suitable for research, will be the city's water source heat pump suitable for plain divided into development areas, restrictions on the development area and the prohibition of the development area. Among them, suitable for development areas are mainly located in Shunyi, Pinggu, Chaoyang, Fangshan, Changping and other water source protection areas and recharge areas outside the region, which coarse particles aquifer permeability, groundwater pumping irrigation easier; restricted development zone is mainly distributed in Changping, Shunyi, Haidian border region and Daxing, Tongzhou area, as well as in the Chaobai, the Yongding River basin water resource protection zone of groundwater recharge areas outside; prohibition of the development zone is mainly distributed in Haidian, Fengtai, Miyun, Shunyi, Huairou water district, district County focus on water sources, as well as Changping, Shunyi, Chaoyang, Daxing District, within the land subsidence.

    Shijiazhuang, Hebei: to be implemented to achieve water-source heat pump heating and cooling

    The use of Qiaodong Sewage Treatment Plant effluent contains a large number of low-temperature waste heat energy, Shijiazhuang City, plan the implementation of Qiaodong sewage source heat pump project, put into operation, providing around 8 million square meters of building heating, in summer to 300 million square meters of construction area cooling. Recently, the "Shijiazhuang Qiaodong sewage source heat pump project planning (2009 ~ 2020)," After the approval of Shijiazhuang Municipal Planning Commission approved in principle.

    According to reports, this project is mainly to solve in Shijiazhuang City, central heating power and heating needs of existing contradictions and to achieve energy-saving emission reduction. At present, the central heating zone in Shijiazhuang, the winter heating with hot load of large, existing heat points, including thermal power plant Yuhua, Shijiazhuang Thermal Power Plant and so on. While in the central hot zone, Qiaodong secondary sewage treatment plant effluent, and Yuhua heat and power plant cooling water contains a large number of low-temperature waste heat energy can be fully utilized, the building of sewage source heat pump works as a supplementary heat source point to the central heating hot spots do add some housing, public buildings heating cooling users can ease the tense situation in central heating in some areas. The program states that Qiaodong sewage source heat pump system uses a centralized, indirect systems, because the project is the use of wastewater treatment plant effluent and the southern suburbs Qiaodong cycle power plant cooling water, in view of engineering and technical requirements, the project site to build on these two items periphery. Therefore, planning in the Qiaodong Sewage Treatment Plant north of the project focused on building sewage-source heat pump, low-temperature heat pipe cooling trunk diameter of 1 meter. Planning use of branched pipe network system, along the backbone of sports street laying heating pipe, take out the heat from the trunk tube branch pipe to each heating cell.

    Shanghai: "fishing expedition" after large-scale application of geothermal energy

    The recently held "Shanghai shallow investigation and assessment of geothermal energy," the expert review will be disclosed, the relevant departments will be the city's geothermal Shanghai a "fishing expedition" in the near future, of renewable geothermal energy, green energy will be in Shanghai to contribute to energy-saving emission reduction.

    The so-called shallow geothermal energy, that is embedded in the surface less than 200 meters, the temperature is kept at a constant does not exceed 25 degrees Celsius heat. Experts say the use of ground-source heat pump system that can absorb heat during the winter from the earth during the summer to absorb cold, then heat pump units to the building to achieve energy-saving cooling and heating. This is compared with the conventional HVAC system can save 25% to 60% of energy. At present, Shanghai shallow geothermal energy use of air-conditioning the size of the project has no less than 500, although the scale is not large, but experts believe that its development is fast, the potential need is great. Expo-axis on the use of a ground-source heat pump system and the river water source heat pump air conditioning system using geothermal energy to provide a temperature suitable for tourists visit the environment. In addition, Shanghai's Chongming County town of 4,000 square meters Satellite Park Chan demonstration eco-office building, also used a ground-source heat pump air-conditioning system, in order to build low-carbon green ecological island, opened up a new energy-saving emission reduction path.

    According to the existing level of technology, 1 square kilometers of ground-source heat pump suitable area, using shallow geothermal cooling and heating to obtain an annual 2.4 to 2.8 million tons of coal energy, which means that each year about 245,000 tons of carbon dioxide emissions , emission reduction of about 2,000 tons of sulfur dioxide, 1,000 tons of nitrogen oxides emissions, soot emissions 18 thousand tons. In addition, ground-source heat pump system does not consume a drop of ground water, just make heat exchanger buried in the ground, the ground can still build tall buildings, planting trees, seed crops.


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