Features and advantages of steel-in-steel insulated steel pipes

For manufacturers and prices of steel-insulated steel pipes with steel sleeves, please choose our professional Tianze insulated pipe manufacturer. On-site joint insulation of steel-sheathed insulated steel pipes must be carried out after passing the pressure test. On-site joint insulation construction steel-sleeved steel steam insulated steel pipes are suitable for transportation in It is widely used in thermal insulation and cold insulation projects of various media within the range of ℃ and ℃. It is widely used in thermal insulation and cold insulation projects in urban central heating/warming room/cold storage/coal mine/petroleum port/chemical industry and other industries. Advantages and Features
Reduce project cost.
According to calculations by relevant departments, double-pipe heating pipes can generally reduce project costs by using fiberglass as the protective layer and high-density polyethylene as the protective layer.
Low heat loss, saving energy.
Its thermal conductivity is b/, which is much lower than other pipe insulation materials commonly used in the past, and the insulation effect is ~ times improved. Furthermore, its water absorption rate is very low, about /. The reason for the low water absorption rate is that the closed cell rate of polyurethane foam is as high as about 10%. Low thermal conductivity and low water absorption, coupled with the insulation layer and high-density polyethylene or fiberglass protective shell with good waterproof performance on the outside, have changed the situation of traditional trench-laying heating pipes wearing wet cotton jackets, greatly reducing the overall heat loss of the heating pipes. The heat loss of the heating network is less than the international standard requirements.
Anti-corrosion, good insulation performance and long service life.
Because the polyurethane rigid foam insulation layer is tightly bonded to the outer skin of the steel pipe, it isolates the infiltration of air and water and can play a good anti-corrosion role. At the same time, its foaming holes are closed and its water absorption is very small. Both high-density polyethylene shell and fiberglass shell have good anti-corrosion insulation and mechanical properties. Therefore, the outer skin of the working steel pipe is difficult to be eroded by outside air and water. As long as the internal water quality of the pipeline is well treated, the service life can reach more than 10 years, which is ~ times longer than the service life of traditional trench laying and overhead laying.
Pipe insulation. It occupies less space, is quick to construct, and is conducive to environmental protection.
Directly buried heating pipe insulation does not require the construction of huge trenches. The insulation pipes only need to be buried underground, thus greatly reducing the project area, reducing the amount of earthwork excavation, and reducing the amount of civil masonry and concrete. . At the same time, the insulation pipe processing and on-site trenching are carried out in parallel, and only on-site joints are needed, which can shorten the construction period by more than approximately.
Our company can undertake single-layer and double-layer sintered epoxy powder B double-layer polyethylene and three-layer polyethylene epoxy coal asphalt steel pipe anti-corrosion polyurethane prefabricated direct-buried insulation pipe black and yellow jacket insulation pipe high Molecular anti-corrosion coating anti-corrosion, epoxy resin anti-corrosion pipes, high-density polyethylene anti-corrosion pipes, cement mortar-lined anti-corrosion pipes, prefabricated direct buried pipe fittings insulation and anti-corrosion projects. Implement /// standards. The company regards product quality as the life of the enterprise and has established a complete quality assurance system, which has passed certification. We conduct quality tracking and control throughout the entire process from raw material rust removal and coating to product delivery. The perfect quality management system and advanced testing equipment provide reliable guarantee for providing users with high-quality products.
We always adhere to the corporate philosophy of credibility first, quality-oriented and customer first. Based on the business purpose of Dexing Factory, we are committed to building a business based on management, customer-centered, technology-led and quality-oriented. As the lifeline optimization enterprise, we hope that our company can become your long-term partner. We sincerely welcome your arrival!
Technical Features of External Sliding Structure
Because there is an air layer between the insulation layer and the outer protective pipe of the external sliding structure, the water immersed in the pipeline during transportation and construction can be discharged during the gradual heating process, so More suitable for areas with abundant rainfall and high water levels. However, for soils with relatively high contents of chloride ions, sulfur ions, etc., especially in coastal areas, the anti-corrosion of external steel pipes needs to be strengthened.
The external sliding structure is designed based on the idea of steel trenches, which can make full use of elbows for natural compensation, reducing costs and reducing the thrust of the fixed pier.
Divide the pipeline into multiple relatively independent parts at the fixed piers. It is best to install two sets of moisture drainage pipes between the two fixed piers. The moisture drainage pipes can not only remove moist gases, but also serve as a source of daily operation. Signal pipe can monitor the operation of the pipe network at any time.
The outer sliding structure can be transformed into a vacuum structure as needed.
Features
Reduce project costs.
Low heat loss, saving energy.
Anti-corrosion, good insulation performance and long service life.
There are currently no less than a thousand manufacturers engaged in the production of spiral steel pipes, and the industry concentration has further decreased in recent years. At present, my country's steel pipe industry not only has low concentration, but also has overcapacity spreading to high-end products, and homogeneous competition is intensifying. In recent years, the government has paid more and more attention to promoting the resolution of overcapacity, promoting the adjustment, transformation and upgrading of production structure, mergers and reorganizations in the process of deepening reforms, and the work has become more and more in-depth, and the policies have become more and more close to the market. In addition, the market environment is forcing spiral steel pipe manufacturers to reform and self-adjust at an increasingly faster pace, and the era of great change for spiral steel pipe companies has truly arrived. The company's main business is prefabricated directly buried high and low insulation pipes, insulation pipe fittings, power plant main steam, main water supply, hot and cold section high-pressure pipe fittings, high-voltage power station bends, and factory piping. All products adopt American standards and German standards. The company's products are produced according to Japanese standards, Chinese B/B and other standards. The company's products are complete in variety, diverse specifications, beautiful in appearance, and stable in performance. They not only have butt-welded seamless elbows of various materials, but can also process and manufacture non-standard products according to user requirements. The products are sold domestically and exported to Europe, America, Southeast Asian countries and regions. The products are of excellent quality and reliable, and are well received by customers and peers. For external processing, non-standard products can be processed according to user requirements with drawings and samples. Customers are welcome to come. Come to negotiate and consult!