Construction technology of key nodes of one reconstruction project of buried pipe heat exchange system
The original heating and refrigeration system of one pipe industry company building in Tianjin is ordinary pressure gas-fired hot water boiler heating and split air-con-ditioning refrigeration system,which is to transform into shallow geothermal energy as basic energy.Before construction,the rock-soil structure and heat exchange capacity of the site,as well as the distribution of underground integrated pipelines are found out by the on-site rock-soil thermal response test and underground pipelines detection.In addition,the unit cooling and heating load indexes of building are corrected.The key tech-nology nodes in the construction of buried pipe heat exchange system are expounded,in-cluding drilling of vertical heat exchange hole,pipe laying,backfilling and horizontal pipe-lines connection,which provides reference for similar reconstruction projects.
NETL
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