桥式滤水管21世纪热销产品.docVIP

桥式滤水管 桥式滤水管又叫花管，它是一种有桥形孔眼的滤水器材，在发达国家早已被广泛使用。从事水文地质勘探、钻井、凿井施工、水库降水、基础深挖降水、地热开发利用、矿泉水开发利用。地温空调，坏井复修，地下水源地取水等，八十年代地质矿产部开始引进推广，并取得令人满意的效果。被誉为理想的水井过滤管。 根据国内外的使用经验以及我单位近十几年跟踪服务调研后，认为桥式滤水管与其它类型的滤水管相比具有以下优点： □桥形孔口地特殊结构使得砾石不易阻塞孔眼，据德国诺尔德公司试验，传统的滤水器填砾石孔隙率要降低40%，而桥式滤水管仅下降10%。所以桥式滤水管有较高的过水能力。水井经洗井除砂后可获得清洁无砂的水源。 □桥式滤水管的特殊孔形结构起到了增强滤水管机械强度的效果。因此，具有较高的机械强度。 □根据用户需要，镀（涂）有不同的防腐层，可提高水井的使用寿命。 □桥式滤水管系采用钢板冲孔，卷制而成，因此重量轻、价格便宜。 □可采用多种连接方式，因此下管操作方便。 □可根据用户要求，改变其桥孔的缝隙，使用户获得满意的桥孔隙率。 □可根据用户要求，提供任意直径的桥式滤水管，极大地方便了用户。 Bridge slot screen is also called flower tube,it has the bridge openings arranged in rows and are staggered to reduce the negative effect on the screen’s strength. Typically the slots are punched in a flat sheet that is subsequently rolled into a tube and welded.regarded as the best choice of well tube filter, they are widely applied in a variety of fields in the developed countries. According to our after-sale services and the application experiece at home and abroad, the advantages of bridge slot screens, when compared with other kinds of screens, can be listed as follows: ● High strength through resistance to twisting, compressive, and tensile forces. ● A smooth bore that does not impede the passage of probes, tools, etc. ● The special structure of the slot makes it difficult for particles to get stuck in the slot, thus bettering its discharge capacity. ● The special bridge slot of screens help impoving their mechnic strength. ● Application of Anticorrosive coasting will prolong the span life of wells. ● Slots and the diameter of bridge slot screens can be custom made to satisfy your needs. ● Convenient to operate owing to various connecting methods between screens. ● Lighter in weight and lower in price. 桥式滤水管材质及表面防腐层的选择 1. 一般情况下可以选用Q235(A3)材质，表面镀锌或涂有防腐涂料的滤水管。 2. 若水质中含有腐蚀性化学元素或水井的造价、寿命等要求特别高，可选用不锈钢材质的滤水管或表面涂有防锈，防腐涂层的滤水管。 Choice of Material and Anticorrosive Coating of Bridge Slot Screens In the ordinary course of events, we choose galvanized or coate