回灌井是通过将基坑降水回灌到基坑周边土体从而达到相对循环稳定的工艺。由于地质条件、地表管路等因素影响导致普通常压回灌无法达到预期效果,在这里开发启用一种变频恒压回灌装置并在实际工程过程中得到有效利用。利用变频器调控水泵提供恒定压力对地层进行注水,顺利解决回灌量不足的问题。 Recycling well is through the foundation pit dewatering back to the surrounding soil so as to achieve a relatively stable cycle of the process. Due to geological conditions, surface pipelines and other factors lead to ordinary atmospheric pressure can not achieve the desired results, here to develop a variable frequency constant pressure irrigation device and effective use of the actual engineering process. Use the inverter to control the pump to provide a constant pressure to inject water into the formation, and to solve the problem of insufficient amount of recirculation.