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直埋保温管的结构组成你了解吗?

来源:http://www.sdhpgy.com 日期:2020-06-02 发布人:haipo
  预制直埋保温管由输送介质钢管、聚氨酯硬质泡沫塑料管保温层和高密度聚乙烯外护管组成。
  The prefabricated directly buried insulation pipe is composed of a conveying medium steel tube, a polyurethane rigid foam pipe insulation layer and a high-density polyethylene external protection pipe.
  层:工作钢管层
  Layer: working steel pipe layer
  根据设计和客户要求选择无缝螺旋焊管和直缝焊管。钢管表面经先进抛丸除锈处理后,钢管除锈可达gb8923-1988标准Sa2,表面粗糙度可达GB6060。在5-88标准下,R等于12。5微米。
  According to the design and customer's requirements, we can choose seamless spiral welded pipe and straight welded pipe. After the surface of steel pipe is treated by advanced shot blasting, the rust removal of steel pipe can reach SA2 of gb8923-1988 standard, and the surface roughness can reach gb6060. At 5-88, R equals 12. 5 microns.
黑夹克直埋式直缝钢管
  二楼:聚氨酯保温
  Second floor: polyurethane insulation
  采用高压发泡机将原溶液二次注入钢管与外护套之间形成的空腔内形成硬质聚氨酯泡沫。俗称“管中管发泡工艺”。其功能是防水,第二是保温,第三是支撑热净重。在输送介质温度为-50℃-120℃时,选择硬质聚氨酯泡沫塑料作为保温层。
  A rigid polyurethane foam was formed by injecting the original solution into the cavity formed between the steel pipe and the outer sheath two times by using the high-pressure foaming machine. Commonly known as "tube in tube foaming process". Its function is waterproof, the second is heat preservation, and the third is to support the thermal net weight. Rigid polyurethane foam is selected as the insulation layer when the conveying medium temperature is -50 C -120 C.
  三层:高密度聚乙烯保护层
  Three layers: high density polyethylene protective layer
  预制黑色(黄色)塑料管具有固定的壁厚,其作用是保护聚氨酯保温层免受机械损伤,其次,防腐防水。先进的设备,优秀的技术人员,科学的管理模式,完善的质量保证体系,合理的价格。
  The prefabricated black (yellow) plastic pipe has a fixed wall thickness. Its function is to protect the polyurethane insulation layer from mechanical damage. Secondly, it is anti-corrosion and waterproof. Advanced equipment, excellent technical personnel, scientific management mode, perfect quality assurance system and reasonable price.
  预制直埋保温管
  Prefabricated directly buried insulation pipe
  预制直埋保温管的优点主要体现在以下几个方面:
  The advantages of prefabricated directly buried insulation pipe are mainly reflected in the following aspects:
  1、耐腐蚀性:化学惰性材料,具有优异的耐腐蚀性,并可根据输送介质的不同选择不同的耐腐蚀管道。
  1. Corrosion resistance: chemical inert material, with excellent corrosion resistance, and can choose different corrosion-resistant pipes according to different transmission medium.
  2. 机械强度高:耐超高水压、耐外压、耐冲击强度均较好,可按要求压力设计制造管材及管件。
  2. High mechanical strength: it has good resistance to ultra-high water pressure, external pressure and impact, and can be designed and manufactured according to the required pressure.
  3.温度适应性强:预制直埋保温管温度范围大于-70℃,小于250℃,且在冷冻介质下不破裂。
  3. Strong temperature adaptability: the temperature range of prefabricated directly buried insulation pipe is more than - 70 ℃, less than 250 ℃, and it will not break under the freezing medium.
  4. 低流体阻力:管道内壁光滑,粗糙度系数为0。在相同流量下,可以减小管径。
  4. Low fluid resistance: the inner wall of the pipe is smooth, and the roughness coefficient is 0. Under the same flow rate, the pipe diameter can be reduced.
  5、重量轻,寿命长:质量轻,运输方便,施工成本低,无需维护,使用寿命可达50年以上。
  5. Light weight, long service life: light weight, convenient transportation, low construction cost, no maintenance, service life up to more than 50 years.
  6、确保水质:确保水质无毒,确保输送的饮用水,能长期保持水质健康。
  6. Ensure the water quality: ensure the water quality is non-toxic, ensure the delivery of drinking water, can maintain the long-term health of water quality.
  以上是黑夹克直埋式直缝钢管小编为大家介绍的相关内容,想要了解更多内容,欢迎访问网站:http://www.sdhpgy.com
  The above is the introduction of the black jacket direct buried straight seam steel tube. If you want to know more, please visit the website: http://www.sdhpgy.com

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