Steel sleeve steel insulation steel pipe manufacturer price

Hebei Tianze Pipe Industry Our company specializes in the production and sales of steel-sheathed steel steam transportation spiral steel pipes steel-sheathed steel glass rock wool insulation pipes steam transportation glass wool spiral pipes aluminum silicate insulation pipes calcium silicate aluminum foil reflective layer insulation pipes black jacket polyurethane foam insulation Our company is a large-scale insulated steel pipe manufacturer in North China. The company covers an area of mu and has many employees. The factory has advanced insulation equipment and production lines that can produce insulated steel pipes of various diameters. Welcome to inquire and come to the factory for inspection and cooperation. Great progress has been made in research, development and application.
In order to adapt to the rapidly developing market demand for directly buried steam pipelines, in recent years, our country's vast number of scientific and technical personnel and manufacturers have made great efforts in the research, development and application of directly buried steam pipeline technology and have made great progress. No country in the world can compare with ours in terms of the diversity of insulation structural types and materials used, and the scale of engineering practice. The author has communicated with Brugge, Italy, Socksam, Germany, and many other companies in the United States many times. Their general maximum pipe diameter h is not large, and the direct pipe diameter currently used in my country's Shandong, Jinan, Hebei, Shijiazhuang, Shaanxi, Xi'an, Liaoning, Dalian, Henan, Jiangsu, and Zhejiang. The number of buried steam pipes has exceeded h and some have reached h. The insulation structure types include internal sliding and external sliding. The high-resistant insulation materials used include microporous calcium silicate, glass wool tube shell, hot-pressed perlite, silicon bead insulation material, composite silicate, etc. There are many types of insulation materials used in thermal insulation structures. Therefore, our country does not lag behind developed countries in the development and application of directly buried steam pipelines.
In the thermal insulation calculation, the thermal conductivity coefficient of the soil insulation material cannot be selected hastily. The correct selection of these two coefficients often affects the insulation effect and pipeline operation safety.
The thermal conductivity of soil spans a wide range between .~./., and its size is related to various factors such as soil type, moisture content, chemical composition, burial conditions, etc. When designing the project, we should insist on measuring the local soil thermal conductivity or ask the local geological department to provide information to carefully determine the soil thermal conductivity value. It is not scientific to determine the soil thermal conductivity only based on ./. when there is no data available, because it cannot accurately reflect the actual condition of the soil where the pipeline is located, resulting in a large error in the calculation results. For example, if the soil thermal conductivity values in high water-level areas in the south and dry areas in the west are twice as different, the calculation results of the insulation structure will also be very different. If the calculation is hasty, the surface temperature of the pipeline will be too high or too low, damaging the pipeline protective layer or being uneconomical. Therefore, the local measured soil thermal conductivity value should be used for calculation. Shijiazhuang Heating Headquarters and other units insist on measuring thermal conductivity as a scientific attitude.