传统技术：国外一些发达国家已立法限制采用的一井抽水多井回灌的地下水取热方式

The traditional technique: it is a heat extracting method that underground water is pumped out from one well and poured back into several other wells. This technique has been restricted by law in many developed countries because of its disadvantages.

1、水流+泥沙 water flow+sand

2、原理：以不断补给的地下水为载体，利用低温地下水中的能量。

Principle: It uses the continuous underground water as its supporter, and makes use of the energy contained in the low temperature underground water.

3、推广应用时间：1964-2001年。2000年以后美国、瑞士等国已制定法律加以限制。

Duration of Its Application: 1964-2001, and after 2000, it has been restricted by law in U.S.A,Switzerland and some other countries.

4、存在问题：

（1）移沙造成的塌陷和阻塞；

（2）地下水交叉污染；

（3）地下水资源浪费。

Disadvantages:

 (1)Collapse and blocks caused by moving sands;

 (2)Intercross pollution of underground water;

 (3) Underground water resource waste.

最新技术：思博威科技公司拥有自主知识产权的

单井抽灌的土壤取能方式

The new technique: it is a heat extracting method that a single well is used for underground water pumped up and poured back. It is SUPERWAY’s intellectual property rights and patents technique.

1、井口换热器 Heat exchanger at well head

2、原理：以循环水为介质开发利用浅层土壤

中的低温能量。

Principle: It uses the recycling water as its medium, and makes use of the low temperature energy contained in shallow ground.

3、推广应用时间：2001年5月15日至今。

Duration of Its Application: Since 15 May,2001 up to today;

4、特点：

（1）无移沙问题，无地下水交叉污染问题，实现严格意义上的制取热不用水;

（2）使用蕴藏巨大的地下土壤中的能量（约为同区域的地下水中能量的10倍）供热（冷）稳定可靠；

（3）最大限度地减少了供热对地下水的依赖。

Advantages:

(1) No moving sand or groundwater intercross pollution problems happen, which realizes the heat extracting without water taking;

(2) Make the best use of the rich energy from the shallow ground which is 10 times higher than that contained in the underground water in the same area, and the heating (cooling ) supply is stable and reliable;

(3) Heating systems can be freed from the dependence on the underground water.