污水及地表水地源热泵系统规范化设计研究

通过理论、实验及工程跟踪研究,分析了系统设计中的关键性问题与设计要点,包括系统形式、换热方式和换热工况、取水方法及防阻方法等。重点论述了换热工况设计,并给出了设计实例。介绍了防阻器专利产品的设计标准和工艺流程。

Testing with high density resistivity method in prevention and cure for mine water disaster and its applied effect

The detecting examples using the high density resistivity method, about the evaluation of containing water characteristic from the floor rock and the height of overburden failure, were given. It expresses that the high density resistivity method has good effect with strong maneuverability and continuous observing section during the prevention and cure for mine water disaster. At the same time, the article pointed out that the study of space data inversion and dynamic watching technology about the high density resistivity method must be enhanced in the future because of special condition of data collecting in mine.