作为埋地石油、天然气管道不可缺少的警示产品,警示胶带在应用中多年未曾更换。正是由于其优良的产品特性,警示胶带采用PE(聚乙烯)颗粒制成,所以其防腐性能好,能保证埋地30-50年不腐烂,将继续起到警示作用。那么决定警示胶带质量的关键因素有哪些?下面来简单解释一下吧。
As an indispensable safety warning product for buried oil and gas pipelines, warning tapes have not been replaced for many years. Because of its excellent product characteristics, the warning tape is made of PE (polyethylene) particles, so its anti-corrosion performance is good, which can ensure that it will not rot for 30-50 years, and will continue to play a warning role. So what are the key factors that determine the quality of warning tape? Let's explain briefly.
现在地下管道越来越多,交纵越来也越多,一些老旧的管道依然在运行并没有被废弃,但如果没有一款好的警示带用来当作保护,而是选用了低档的材料产品,那么在管道没有老化之前它自己就先被分解了,那就没有任何保护了,所以现在的警示带基本都采用不降解的PE材料。
Now there are more and more underground pipelines, and there are more and more vertical pipelines. Some old pipelines are still running and have not been abandoned. But if there is no good warning tape for protection, but low-grade material products are selected, then the pipeline itself will be decomposed before it is aged, so there will be no protection. So now the warning tape basically uses non degradable PE materials.
供水警示带的原材料具有良好的PE(聚乙烯)颗粒性能。无味、、手感如蜡、耐低温性优良(很低工作温度可达-100~-70℃),在-60℃仍能保持良好的机械性能,工作温度为80~110°C。化学稳定性好,耐大多数酸碱侵蚀(不耐酸具有氧化性)。常温下不溶于一般溶剂,吸水率低,电绝缘性优良。经过测试,埋在地下30年,不会腐烂。
The raw material of water supply warning tape has good PE (polyethylene) particle performance. It is tasteless, non-toxic, feels like wax, and has excellent low temperature resistance (the working temperature can reach -100~-70 ℃ at a very low temperature). It can still maintain good mechanical properties at -60 ℃, and the working temperature is 80~110 ° C. Good chemical stability, resistant to most acid and alkali erosion (acid intolerance and oxidation). It is insoluble in general solvents at room temperature, with low water absorption and excellent electrical insulation. After testing, it will not rot after being buried underground for 30 years.
另一个是过程。大部分吹膜设备是很新的三层共挤设备,可以保证警示带半成品的横向和纵向撕裂强度,可以有效控制产品的厚度和宽度根据技术文件,超标会增加成本。然后是印刷过程,如果再都的警示带没有抓好,管道埋在地下3-5年就会褪色,就不能起到警示作用。
The other is the process. Most of the film blowing equipment are very new three-layer coextrusion equipment, which can ensure the transverse and longitudinal tear strength of the semi-finished warning tape, and can effectively control the thickness and width of the product. According to the technical documents, exceeding the standard will increase the cost. Then there is the printing process. If the warning tape of zaidu is not grasped well, the pipeline will fade after being buried underground for 3-5 years, so it cannot serve as a warning.
此外在管道埋地施工过程中,施工人员将警示带与管道同向铺设在上方30-50cm处,具有很好的警示提醒作用,这就很大程度避免了其它在附近施工时无意损坏管道,选成管道防腐层破损,更严重的还会造成管道泄露。为防止管道运行出现风险,现在施工设计部门都将此产品列入了施工技术规范。
In addition, during the buried construction of the pipeline, the construction personnel will lay the warning tape in the same direction with the pipeline at the upper 30-50cm, which has a good warning effect, which largely avoids other unintentional damage to the pipeline during nearby construction, such as the damage of the pipeline anti-corrosion coating, and even more serious, the leakage of the pipeline. In order to prevent the risk of pipeline operation safety, the construction design department has now included this product in the construction technical specifications.
Through the above article, you can clearly understand the content of the problem. I believe that after reading this article, you can have a more in-depth understanding of the product and the matter. In the future, if you want to know more relevant knowledge, you can continue to pay attention to our official website http://www.binzhouhengtong.com , please feel free to contact us if you need anything.