Of course, the service life of steel sleeve steel insulation pipe

The valve flange insulation sleeve ensures that the insulation sleeve can be used in the largest possible temperature range. It can have the characteristics of wear resistance, oil resistance, moisture resistance, corrosion resistance, aging resistance and so on. According to the different use temperature, it can be divided into low temperature type and high temperature type. Low-temperature type: generally used for low-temperature anti-freezing and medium-low temperature maintenance, mainly in order to be damaged by low temperature or maintain a medium-low temperature. High-temperature type: generally used as high-temperature equipment to maintain the temperature and reduce heat loss, at the same time, because the insulation sleeve is a non-metallic material with low outer temperature, it can protect the staff from injury. Thermal insulation materials are divided according to material composition, which can be roughly divided into two categories: one is polymer insulation materials, such as foamed polystyrene foam board, rigid polyurethane foam board, etc., and the other is inorganic insulation materials, such as rock wool, glass wool, foam glass board and so on. Of which

The key to whether the above satisfactory results can be achieved lies in the selection of thermal insulation materials and the construction quality of thermal insulation layer, and the service life of steel sleeve steel steam thermal insulation steel pipe is external sliding: the thermal insulation structure consists of working steel pipe, glass cotton thermal insulation layer, aluminum foil reflective layer, stainless steel fastening belt, sliding guide bracket, air insulation layer, external protection steel pipe.

Polyurethane thermal insulation hot-dip galvanized seamless steel pipe manufacturer prefabricated directly buried steel high temperature steam insulation pipe is a new laying technology in underground directly buried pipe, insulation adopts advanced high temperature centrifugal glass wool and outer protection pipe adopts FRP winding technology, produces a new generation of prefabricated directly buried steel sleeve steel steam insulation pipe series products, suitable for transmission pressure, steam or other heat medium below 350℃. Product structure form? The product structure of prefabricated directly buried steam insulation pipe (external sliding): core tube (working steel pipe), silicone high temperature resistant paint, sliding bracket, high temperature resistant glass wool, aluminum foil reflective layer, air insulation layer, outer steel pipe, wound FRP anti-corrosion coating (or epoxy coal tar paint anti-corrosion layer).

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Hangjin Houqi thermal insulation steel pipe specializes in the manufacture of steel sleeve steel directly buried pipe thermal insulation material tied on the working steel pipe, relying on the rolling guide pipe support in the jacket tube integral thermal expansion movement, such a design does not damage the insulation layer, in the practical application process has a good effect, steel sleeve steel pipe directly buried steel pipe material for conveying fluid seamless steel pipe, using GB8163-99 standard. Or adopt the GB3087 standard, or adopt other standard steel pipes according to customer requirements or supply conditions. The specially designed heat insulated high strength sliding support on the steel sleeve steel buried pipe is used to friction with the inner wall of the outer steel pipe, which ensures the concentricity of the inner and outer pipes, so that the thermal insulation materials and working steel pipes move together, and the mechanical wear and pulverization of the thermal insulation materials will not occur.

Practice has proved that the plastic casing steel structure is no longer suitable for directly buried steam pipes and has been basically eliminated. ⑵ internal sliding internal fixation means that the working steel pipe is fixed on the outer pipe through a certain structural form, and the inner pipe is fixed by making full use of the strength and stiffness of the outer pipe and the force between the outer pipe and the soil, so that reinforced concrete bridge piers can be saved instead of reinforced concrete structure. Internal fixation is possible only when the steel pipe is used as an external tube. The fixed end is equipped with heat insulation facilities to reduce the thermal bridge effect, and the outer pipe should have sufficient strength to meet the requirements of horizontal thrust of the pipeline. For the “steel jacket steel” thermal insulation structure, the internal fixation structure has great advantages. According to the difference of outer protection pipe, it can be divided into steel sleeve steel structure and steel sleeve steel composite structure. (3) external sliding and internal fixation are the combination of thermal insulation material and working steel pipe

Can be tailored according to the need for heat preservation parts, processing non-standard products. The detachable thermal insulation clothing which can work with the manhole three-way flange valve and other equipment is developed, which can completely avoid the above situation. It is easier to install and disassemble, can be used repeatedly and at low cost. The thermal insulation clothing is made of lightweight non-asbestos material and can also be used well in narrow areas. Whether it is manhole cutoff valve, ball valve, etc., detachable insulation clothing can be installed. Usually users provide manhole three-way flange valve name and model to order the corresponding thermal insulation clothing, special types need to provide detailed specifications or dimensions. Removable insulation sleeve cloth thickness-mm glass fiber blanket-mm high temperature wire according to temperature selection treatment.

It is one of the directional purchasing units of national electric power, petroleum and petrochemical materials, mainly undertaking all kinds of thermal insulation and anticorrosion pipes and pipe fittings needed by thermal power companies, central heating, hydropower construction and petrochemical industry. Of course, the service life of steel sleeve steel insulation pipe products is relatively long, so regular cleaning and dredging are needed in daily use to avoid blockage, but accidents occur, work and life are affected accordingly, because such pipes are mainly used to transport special liquids or gases, and their pollution is relatively strong.