| The ground source heat pump is an air conditioning system which uses thesolar energy resources stored by earth as cold and heat sources.The design of heatexchanger is the key to the ground source heat pump system, which directlyinfluences the performance of the heat pump units and the effect of running.Withthe useful life of many projects growth,the effect of ground heat pipe is gettingworse.The main reason is hydraulic imbalance and many U-tubes jam.This essay isbased on the hydraulics analysis,and studies the hydraulic balance problems ofvertical pipe system in the ground source heat pump.At first,The basic content of the outdoor ground heat system in the groundsource heat pump is introduced in the article,including design calculations,construction methods, connection type and so on. And the outdoor buried pipesystem is analyzed from the angle of hydraulics.First it researches the influence ofdiameter, depth and pipe type on one ground heat pipe’s head loss,and thenresearches catchment fitting and watershed fitting,which can effect the hydraulicbalance.Finally, how to decorate ground heat pipe reasonable under limited spaceconditions is researched in the article.These hydraulic problems are analyzed with Pipe Flow traffic analysissoftware in the article,and the results are verified by using a ground source heatpump project in Hefei.Finally hydraulic uniform and flow balance can be achievedin the project.on the other hand,a few outdoor underground pipe system hydraulicbalance methods can be summarized by analyzing hydraulic calculation results inthe article. |
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