The elbow avoids corrosion and plant corrosion and prolongs the service life of pipe fittings. Support the working pipe and be able to bear a certain external load to ensure the normal operation of the working pipe. Certify the medium temperature to ensure that the surface of the outer protection tube is kept at room temperature, the heat preservation of the inner working pipe fittings is kept, and the foam is not carbonized. Tube: to ensure the normal flow of the conveying medium. (3) Electric fusion sleeve, this kind of welding method adopts the sleeve with embedded resistance wire, binds the hot melt to the outer casing with belt, and starts welding with power supply, and the welding time is set in advance. Finish the welding after the automatic power off, and remove the strap after the casing is completely cooled. The joint is simple in construction and firm in welding. Application. Except for the usual ones.
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Liaocheng prefabricated directly buried steel high temperature steam insulation pipe is a new laying technology in underground directly buried pipes. Advanced high temperature centrifugal glass wool and FRP winding technology are adopted to produce a new generation of prefabricated directly buried steel sleeve steel steam insulation pipe series products, which are suitable for conveying steam or other heat media below pressure ℃. Product structure form prefabricated directly buried steam insulation pipe (external sliding) product structure form: 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, winding FRP anti-corrosion layer.
Type: the thermal insulation structure is composed of working steel pipe, glass wool thermal insulation layer, aluminum foil reflective layer, stainless steel fastening belt, sliding guide bracket, air insulation layer, external steel pipe and external anti-corrosion layer. Steel sleeve, steel steam directly buried thermal insulation steel pipe manufacturer Transportation method Polyurethane rigid foam thermal insulation material for construction industry is every important branch of polyurethane industry, its characteristic is that it is often used, and has both thermal insulation, waterproof and other functions. It has been 40 years since this kind of product was used in the western construction industry in the 1960s, and some countries have legislated polyurethane as the thermal insulation and waterproof material designated by the construction industry. In recent years, with the rapid growth of the construction of energy-saving shopping malls in China, polyurethane rigid foam insulation products have been widely used in the construction of thermal insulation and waterproof boundaries, and have become one of the leading thermal insulation and energy-saving products of shopping malls. So, quality.
Hubei Electric Power prefabricated directly buried Polyurethane Insulation Pipe Factory welcomes consultation. 3 the insulation layer of external sliding steel sleeve steel insulation pipe adopts high temperature resistant glass wool and high density calcium silicate tile shell material, and the pipe network temperature above 350 degrees Celsius is made of high density calcium silicate, because its high temperature resistance can reach more than 750 degrees Celsius. The temperature of the interface between the working pipe network and the organic insulation layer is very good, so that the foam is not carbonized by it.
The utility model does not need to attach pipe ditches and can be directly buried in the ground or water. The construction is simple and rapid, and the comprehensive cost is low. When using bellows compensator, it is suggested that it should be made into directly buried type together with pipeline. in order to prevent the corrosion of bellows compensator caused by heat dissipation and infiltration water, it should be made into thermal insulation and waterproof sealing structure. In order to maintain the rationality of the thrust of the fixed bracket and the coordination of the compensator during the operation of the pipeline, it is suggested that the compensator should be symmetrically arranged at both ends of the fixed bracket, and a guide bracket should be added at each end of the compensator to ensure that the compensator only bears axial thrust and prolong the service life of the compensator. Make thermal insulation prefabricated parts in the prefabrication plant, weld patches on site or carry out heat preservation and anticorrosion on site. Application of directly buried thermal insulation pipe the internal sliding type of steel sleeve steel thermal insulation pipe: the thermal insulation structure is composed of working steel pipe, aluminum silicate, drag reduction layer, microporous calcium silicate, heat insulation layer, stainless steel fastening steel strip, aluminum foil reflection layer, polyurethane insulation layer, outer steel pipe and external anti-corrosion layer.
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