发布日期：2018-04-09 作者：地源热泵公司 点击：
A very important stage is to seal the well backfill ground source heat pump system in the construction process, we can through the following three steps to complete, well backfilling work, many details of the problem which we should pay attention to, not because of carelessness and affect the quality of the whole project, we first look through what is walking, backfill work the whole system of wells.
The U type is guaranteed to not rush to seal the well qualified pressure;
Backfill does not meet the requirements;
Grouting pipe is too fast when backfilling.
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