福建新闻网聚氨酯保温钢管

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聚氨酯保温管道是一种具有防腐性能的钢管，并且具有良好的保温性能，在建筑施工中得到广泛的使用和推广，并且在不断的进行完善和普及。防腐保温钢管具有不同的加工种类和方法，不同的加工方法确定了钢管具有不同的性能和功能，而且使用范围也会随之改变。管道保温层越厚，则管路散热损失越小，节约了燃料；但厚度加大，保温结构投资费用增加。“经济保温厚度”就是综合考虑管道保温结构的投资和管道散热损失的年运行费用两者因素，折算得出在一定年限内其“年计算费用”为*小时的保温层厚度。

直埋保温管不仅具有传统地沟和架空敷设管道难以比拟的技术、实用性能，而且还具有显着的社会效益和经济效益，也是供热节能的有力措施。预制聚氨酯保温管式保温管一种是由输送介质的钢管、高密度聚乙烯外套管以及钢管和外套管之间填充的聚氨酯硬泡保温层紧密结合而成。只需将除锈防腐后的钢管套在聚乙烯套管内，中间注入聚氨酯泡沫，使之充分填满钢管与聚乙烯套管之间的空隙，终使钢管、套管、保温层形成一个牢固的整体，达到防腐保温的效果；这种防腐保温方式可以架空或者埋在地下，整个施工过程均可在现场进行。
Directly buried insulation pipes can be directly buried in 0.6 - 1.2 meters of permafrost ( so people used to call them directly buried insulation pipes or prefabricated insulation pipes ), the heat loss can be reduced by more than 40 % compared with common pipes, the working service life can be increased by more than 3 - 5 times compared with other heat insulation and anti-corrosion materials, and the service life can reach 30 - 50 years. The quality meets or exceeds the Chinese industry standard. Its perfect insulation system has the characteristics of low cost, short construction period, long service life, energy conservation and environmental protection. the continuous operating temperature is 130 ℃ and the peak value is as high as 150 ℃. Compared with all kinds of traditional heat preservation pipes, the directly buried prefabricated heat preservation pipe has outstanding advantages: 1. it has good heat preservation performance and heat loss is only 25 % of that of the traditional pipe. long-term operation can save a lot of energy and significantly reduce the energy cost. 2. it has strong waterproof and corrosion resistance, does not need a pipe trench, can be directly buried underground or in water, and has simple and rapid construction and low comprehensive cost. 3. it also has good corrosion resistance and impact resistance under low temperature conditions, and can be directly buried in underground frozen soil. 4. the service life can reach 30 - 50 years. correct installation and use can make the pipe network maintenance cost extremely low. 5. an alarm system can be set up to automatically detect the pipe network leakage fault, accurately indicate the fault location and automatically alarm.