大直径冷冻水输送井设计中关键问题的研究

Research on Key Problems of Vertical Shaft Carrying Chilled Water with Large Diameter

随着煤炭开采深度的增加,地温热害问题日趋严重,严重危害了矿工的身体健康,影响工作效率。采用地面大直径钻井向井下输送冷冻水是一种有效的降温方案。文章将对冷冻水输送井井管的冷水保温材料和井管底部开口连接方法进行研究。

With the increase in depth of coal mining, hyperthermia harm is becoming serious. It seriously endangers the health of staff and affects efficiency. Cooling programmer carrying chilled water from ground to deeplevel by drilling the vertical shaft is proposed. This papers will research on preserve heat material and opening at the bottom of inner steel pipe of vertical shaft carrying chilled water with large diameter.