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塑料管材的超越传统关键的原因

塑料埋地管材在国外已经得到广泛应用,原因在于埋地管比铸铁管、钢管、水泥管等传统埋地管材有许多优点:

Plastic buried pipes have been widely used abroad because of the advantages of buried pipes, such as cast iron pipes, steel pipes, cement pipes and other traditional buried pipes:

强度和刚性

Strength and rigidity

表面上塑料埋地管的强度和刚性不及水泥管,特别是钢筋混凝土管,实际上塑料埋地管属“柔性管”,在正确设计和铺设施工情况下,塑料埋地管与周围土壤共同承受负载,因此,塑料埋地管不需要达到与混凝土管等“刚性管”一样的强度和刚性,就可以满足埋地使用中的力学性能要求。

On the surface of plastics pipe strength and rigidity than the cement pipe, especially reinforced concrete pipe, plastic pipe is actually "flexible", in the correct design and construction situation of plastics pipe and the surrounding soil to bear the load, therefore, plastics pipe need not reach the same "rigid pipe and concrete pipe the strength and rigidity, can meet the requirements of using the mechanical properties of the buried.

水力特性塑料管内壁光滑,阻力小,水流通量大,在同等口径下塑料管的水流量比混凝土管大,地形有坡度时,塑料管的管材口径可减小,施工量较小。

The hydraulic characteristics of plastic pipe wall smooth, small resistance, water flux, water flow in the same caliber plastic pipe larger than concrete, terrain slope, plastic pipe diameter can be reduced, the smaller amount of construction.

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密封性水泥管的密封性很差,国内平接口混凝土管在连接处仅靠抹一圈混凝土密封,施工中难于保证不泄漏,加之混凝土管系刚性管,稍有移动(如土壤不均匀沉降)就可造成连接处破坏,另外,水泥管使用硫化橡胶圈密封,塑料管连接用热塑性弹性体密封圈密封,前者使用寿命比后者短,而且塑料管的连接和密封有一系列严格要求,能够最大限度地保证不会发生泄漏。水泥管的寿命只有15年,塑料管的寿命长达50年-100年。

Sealing cement pipe sealing is poor, the domestic flat interface concrete pipe in connection with a circle on the concrete seal, the construction is difficult to ensure no leakage, and the concrete pipe rigid pipe, a slight movement (such as soil uneven settlement) can cause joint damage, in addition, cement pipe using vulcanized rubber ring sealed plastic pipe connection sealing elastic plastic body with heat, the service life of the former than the latter, and the plastic pipe connection and sealing a series of strict requirements, to ensure maximum leakage will not occur. The life of the cement pipe is only 15 years, and the service life of the plastic pipe is 50 years -100 years.

、生活污水、雨水等通常具有腐蚀性,工业污水的腐蚀性更大,使用金属、水泥埋地排水管输送,耐腐蚀性比塑料管差。有些地区室外自然环境的腐蚀性非常大,例如天津市塘沽新区围海造地,铺设的水泥排污管3年后就找不到了,均被海水中的盐腐蚀掉了,只好二次再铺设塑料管。

Domestic sewage, rainwater and other usually corrosive, and industrial sewage corrosion greater, using metal and cement buried drainage pipe, corrosion resistance than plastic pipe difference. Corrosion in some parts of the outdoor environment is very large, such as the Tianjin New District of Tanggu City, land reclamation, sewage pipe laying cement after 3 years can not find, are salt corrosion in seawater was dropped, but two re laying of plastic pipe.

本文由CPVC管材管件阀门批发为您提供,我们的网站是: http://www.sdcpvc.com  我们将以全心全意的热情为您提供更优质的服务,欢迎您的访问!

This paper consists of CPVC pipe valve fittings wholesale to provide you, our website is: http://www.sdcpvc.com We will wholeheartedly provide you with better service, you are welcome to visit!


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