Research On Engineering Application Of Soil Source Heat Pump System

China,as the world's largest Energy consumer countries,energy issues have become a major constraint on China's economic development.Ensuring the supply of energy,developing the economy and benefiting the people is an important task for our government and people for a long time at this stage.China's high dependence on foreign Energy,Energy secu rity and energy issues not only affect China's economic and social development,but also related to the sustainable development of economic and social,therefore,the construction of energy-saving industrial system,strengthen industrial energy conservation,improve the proportion of renewable energy in economic and social life is a realistic choice to alleviate energy problems.In this paper,based on the theoretical research of various types of source heat pump systems and the natural conditions of the construction site,this paper determines the type of source heat pump that meets the design requirements.Through the geological exploration and geotechnical heat response experiments carried out at the construction site,the stratigraphic composition characteristics and geotechnical heat transfer performance of the project site are obtained.According to the project construction scale,construction conditions and design parameters of the project,the maximum heat absorption of the soil in this design is calculated to be less than the maximum heat discharge,and for this kind of load characteristic,the combination of ground source heat pump system and conventional refrigeration system for cooling,and the heating scheme of ground source heat pump system should be considered to realize the thermal balance of soil.That is,in the summer cooling conditions,a certain proportion of conventional chillers are configured to bear the peak cooling load.Conventional chillers take part in the summer heat removal through the cooling tower.Therefore,the system is designed to adopt a hybrid system of “water-cooled unit and ground source heat pump unit(with full heat recovery)”.summer by conventional chillers and ground source heat pump units(full heat recovery)combined refrigeration,and provide summer domestic heating.Hot water central heating is prepared by ground source heat pump unit in winter.Also equipped with a high-temperature ground source heat pump unit,during the non-refrigeration season,the operation of the preparation of domestic hot water,to meet the hotel and apartment 24 h domestic hot water demand.Through field investigation of construction and operation of different types of air conditioning systems,the advantages and disadvantages of different types of air conditioning systems are compared with those of traditional multi-online air conditioning systems.The writing of this thesis comes from the actual project case,which is a practical application study of soil source ground source heat pump system engineering,and has reference significance for the preliminary investigation and construction of soil source ground source heat pump system.