Gas pipeline internal coating

Gas pipeline coating technology is a certain thickness of the pipe wall spray epoxy, not only avoid acidic gases in the transport pipe wall subject to corrosion, but also to prevent inclusion of other contaminants in the gas stream impurities deposited on the etched surface of the pipe wall side , which prevents the actual flow area reduction pipeline, reducing pipeline transmission capacity and reducing the energy consumption of gas pipelines are two ways: optimized at the design stage pipeline diameter, working pressure and pressure ratio choice and optimization of compressor stations settings, and selection of the host device; reduce friction losses gas pipeline, which is required when reducing the gas pressure. Now reduces gas pipeline friction loss is the only way to cover the inner surface of the pipe inner coating layer drag reduction. Inner pipe wall covered with drag-reducing coating, its most important role is to reduce hydraulic friction coefficient, but also reduces the gas when the gas pressure required. That is, the drag reduction effect of the coating on the inner diameter of the stated conditions and the gas volume, reducing the pipe line gas power; or the entire pipeline has been set the total power, increase the amount of gas pipeline . For large diameter gas pipeline, its effectiveness is very large.

管道涂料技术，减少减阻，腐蚀的主要功能。因此，在基本要求中减压降低性能涂料组合物是：粘合强度，渗透性，耐磨性，耐压，耐热性，化学稳定性和耐腐蚀性和光泽度。

涂料组合物中有许多物质，成膜材料可分开，颜料，添加剂和溶剂四类，哪种薄膜材料是必不可少的。为了能够形成良好的管壁覆盖层的良好性能，必须适当地选择涂料组合物，配方科学和合理。国内化学工业通过涂覆涂层材料分类来开发一部主要薄膜，同时也在实际应用覆盖层形成在化学反应，涂层的保护作用，以及涂层的分类形式的分类。

Construction of the basic procedures within the coating:

Preheat pipeline-Surface treatment-Dust-End of the tape-Airless spray-Accelerate the curing-Test-Pile up((Storage to be transported).

Long-distance gas internal coating drag reduction technology has a good technical and economic nature. Drag reduction for the purpose of natural gas in the inner coating technology is a great promotional value of the technology. Technology compared with coated inner coating technology is relatively simple, that a single species, space is limited to the tube, without heating, construction conditions easier to control.