水源热泵英语课件.ppt

1、New air-conditioning technology progress,Water Cooling Pump,From the perspective of sustainable development, the need to improve energy efficiency or renewable energy sources can find the current water source heat pump units is a more satisfactory equipment.,1、The Development,The history of heat pum

2、p can date back to 1912 to a Swiss patent, and the history of the commercial application of heat pump is only 10 years. U.S. commercial building in the ground-source heat pump systems in the air-conditioning accounts for the new construction total reserve of 30 percent in 1998. The northern and cent

3、ral Europe such as Sweden, Switzerland, Austria, Germany and other countries in 1999 for home heating devices, the proportion of ground-source heat pump, Switzerland is of 96%, Austria is of 38%.,The history of China:,In the 1950s, heat institute of Tianjin University Professor 吕灿仁 has carried out t

4、he earliest studies of Chinese heat pump, and in 1965 successfully developed Chinas first Water-cooled air-conditioning heat pump machine.,In the 1990s, the domestic air-conditioning manufacturers have introduced a variety of water-source heat pump products: and now it has become major air-condition

5、ing system of the north and central Plains region hot spots.,分离式水源热泵机组,小型水-水式水源热泵机组,整体水源热泵机组,大型水水水源热泵机组,2、 The Principle,Water-source heat pump is a technology that use the low resources of Earths surface shallow water (groundwater, rivers and lakes) in absorption of solar energy and geothermal heat

6、, and using principles of heat pump through a small number of high electric power input to make low heat transfer to high heat. Simply speaking, water cooling pump system is use of groundwater as hot and cold source “.In the winter heat pump absorb heat from groundwater for their buildings heating;

7、In the summer heat pump absorb heat from the buildings and liberate it to groundwater. Application of only a hardware system, throughout transformation of a condenser and evaporator in different seasons , we can complete the conversion of refrigeration and heating functions. Usually water-source hea

8、t pump consumes 1 kW of the energy, users can get more than 4 kW of heat or cold.,深井回灌的水源热泵系统的基本原理,3、Type of system,1.ASHRAE Classification,According to ASHRAE Handbook: HVAC Applications.（1995）, geothermal energy resource in different temperature range is divided into three categories, and Ground S

9、ource Heat Pump applications, include of two ways of the type of Water-source heat pump : groundwater sources and Surface water-source heat pump.,GC,SW,GC,CW,Horizontal ground-coupled heat pump 水平埋管地源热泵系统,(b) Vertical borehole ground-coupled heat pump 垂直埋管地源热泵系统,. European classification,Part of the

10、 Nordic and Central European countries advocate the use of geothermal and shallow underground storage for the winter and summer building to provide heating and cooling. These countries are more interested in seasonal underground storage applications. Water-source heat pump in the form of underground

11、 water source heat pump is classified on the ground seasonally-storage applications. As shown below:,含水层蓄能应用深井回灌式水源热泵两者涉及的系统地下部分的施工工艺、设计原则以及相关的理论大致相同前者季节性地灌入地表水以供对应季节使用，后者灌入热泵出口冷（热）水,Standing column well heat pumps, SCW 单井换热热井， 也就是单管型垂直埋管地源热泵，在国外常称为热井。,Surface-water heat pumps, SWHPs地表水热泵系统。,Groundw

12、ater heat pumps, GWHPs,地下水热泵系统，也就是通常所说的深井回灌式水源热泵系统。,4、 Performance Analysis,The advantages of water-source heat pump, The use of renewable energy technologies,Water-source heat pump technology is use of groundwater and surface water process, not causing underground and surface water pollution., a co

13、st-effective energy-saving technology Earths surface or shallow water temperature throughout the year is relatively stable, generally for 10 25 .In the winter it is higher than the ambient air temperature, and in summer lower. Its efficiency is significantly higher than that of air-source heat pump,

14、 so it is a good source of heat and cold air-conditioning., Significant environmental benefits,Energy-saving equipment has little pollution. Coolant leakage risk is low.,Stable and reliable operation,More simple system, less components, simple and reliable operation, low costs of maintenance.,The us

15、e of a machine, and a wide range of applications,Water-source heat pump system can be used for heating, air conditioning, hot water for life. Only use of a machine, a system can replace the original two sets of devices or systems of boiler and air-conditioning.,5、 the constraints of water-source hea

16、t pump,(1)The available water conditions is disciplined; Whether different regions have a suitable water source become a key application . Open system :water requires to meet a certain temperature, quantity and cleanliness. Closed systems are generally of higher cost. (2) The constraints of geograph

17、ical structure of water From the underground recharging water, it must take into account the geological structure (3) Investment in the economy Different needs in different areas, the economy of investment in water-source heat pump will be different. (4) The problems of deep-water recharge . Recharg

18、e underground water is more difficult than pumping water. The recharge capacity is restrained of the local hydro-geological conditions, recharge Technology.,6、Comparison,Comparison of Energy Consumption with Direct Solar Heating System and Water Source Heat Pump,7、 Progress of China and abroad,目前美国和国内的科研机构对于深井水源热泵（GWHP）应用工程的研究， 多集中于地面以上部分，即热泵机组运行效率分析，和循环系统的优化设计 及长年运行分析等。,M.J.Hatten提出有必要进行地下含水层的地质分析，及井的尺寸 的合理设计和系统设计应满足未来增长的负荷需求，应考虑井的 供水和回灌能力在长时间运行后的下降。但没有给出关于前期勘 察设计的理论依据。,A.L. Sn