Buried insulating pipe: corrosion pipe insulation - insulation spa central heating pipe network - buried insulating pipe heating pipe insulation works - polyurethane insulation pipe insulation - polyurethane foam pipe insulation polyurethane foam polyurethane rigid insulation preformed pipe insulation prefabricated plastic sleeve Buried prefabricated steel buried pipe insulation protection

Prefabricated buried pipe insulation is widely used in liquid, gas pipeline network, chemical piping insulation works in petroleum, chemical, central heating pipe network, central air conditioning and ventilation pipes, municipal engineering. High temperature prefabricated prefabricated buried insulating pipe is buried pipe insulation a good insulation properties, plus safe, reliable, low construction cost. Effective solution to the urban central heating in 130 ℃ -600 ℃ temperature heat transport prefabricated buried insulating pipe insulation, sliding lubrication and water problems exposed pipe ends. Prefabricated buried pipe insulation not only the traditional trench and aerial installation difficult to compare advanced technology, practical performance, but also has a significant social and economic benefits, but also effective measures heat energy. Prefabricated buried pipe insulation using buried heating pipes, heat pipe technology development indicates that China has entered a new starting point. Prefabricated buried pipe insulation is mainly composed of four parts: steel work: According to the technical requirements of the transmission medium were used seam steel pipe, seamless steel pipe, double-sided spiral submerged arc welded steel pipe. Insulation layer: rigid polyurethane foam. Protective shell: high density polyethylene. Leakage alarm line: the manufacture of high temperature prefabricated buried pipe insulation, the insulation layer close to the pipe, the embedded alarm line, once the pipeline leak occurred somewhere, conduction through the alarm line, the alarm can be on dedicated instrumentation and display the exact location and extent of the size of the leak leaking to notify maintenance personnel to quickly deal with leaky pipe section to ensure the safe operation of the heating network. Prefabricated buried pipe insulation Buried advantage of the characteristics: 1, reduce project cost. According to an estimate, dual control heating pipes, under normal circumstances can be reduced to 25% of project cost (do fiberglass protective layer) and 10% (made of high density polyethylene protective layer) around. 2, low heat loss and save energy. Prefabricated buried pipe insulation thermal conductivity coefficient: λ = 0.013-0.03kcal / m h oC, much lower than other insulation materials used in the past piping, insulation effect increased 4-9 times??. Again its water absorption is very low, about 0.2kg/m2. The reason is due to low water absorption rate of closed-cell polyurethane foam as high as 92%. Low thermal conductivity and low water absorption, thermal insulation and the outside plus good waterproof high-density polyethylene or fiberglass protective shell, changed the traditional trench laying heating pipes situation "wearing wet cotton-padded jacket", greatly reducing the heating pipes overall heat loss, heat loss heating network is 2%, less than 10% of international standards. 3, anti-corrosion, insulation resistance, long service life. Because of prefabricated buried pipe insulation polyurethane rigid foam insulation layer tightly bonded steel skin, cut off from the air and water infiltration, can play a good antiseptic effect. While its foam cells are closed, water absorption is small. High-density polyethylene shell, fiberglass shell have good anti-corrosion, insulation and mechanical properties. Thus, the sheath is difficult to work by the outside air pipe and water erosion. As long as the internal water pipeline deal, according to foreign materials, the life of buried pipe insulation of up to 50 years, than the traditional trench laying, overhead laying life of 3 to 4 times higher. 4, small footprint, fast construction, favorable environmental protection and reduce construction nuisance. Buried prefabricated masonry heating pipes do not need a huge trench, simply bury people underground pipe insulation, thus greatly reducing the project area, reducing the earth excavation is about 50% or more, reducing the amount of civil masonry and concrete 90% . Meanwhile, heat pipes in parallel processing and on-site trenching, just live joints, can significantly shorten the construction period. Due to reduced transport bricks, cement, sand, soil, etc. I, thereby reducing vehicle exhaust emissions, the amount of dust and noise emissions during construction, thereby protecting the environment. 5, the safety. In short, prefabricated buried pipe insulation not only has the traditional trench and overhead piping incomparable advanced technology, practical performance, but also has significant social and economic benefits, but also effective measures heat energy. Using buried heating pipes, heat pipe technology development indicates that China has entered a new starting point.