1, lower project cost.
According to an estimate, double control heating pipes, under normal circumstances can be reduced to 25% of project cost (fiberglass protective layer) and 10% (high-density polyethylene protective layer) around.
2, low heat loss and save energy.
High temperature prefabricated buried pipe insulation
Its thermal conductivity is: λ = 0.013-0.03kcal / m · h · oC, much lower than other previous conventional pipe insulation materials, insulation effect increased 4 to 9 fold. Further water absorption is very low, about 0.2kg / m2. The reason is due to low water absorption rate of closed-cell polyurethane foam about 92%. Low thermal conductivity and low water absorption, together with insulation and a waterproof good performance of high-density polyethylene or fiberglass protective shell, has changed the traditional trench laying heating pipes status "wearing wet jacket", greatly reducing the heating pipes overall heat loss, heat 2% net heat loss, less than 10% of international standards.
3, anti-corrosion, insulation performance, long service life.
Because of the high temperature prefabricated buried pipe insulation polyurethane rigid foam insulation layer intimately bonded in the steel skin, cut off from air and water infiltration, can play a good anti-corrosion effect. While its foaming holes are closed, water absorption is small. High density polyethylene shell, fiberglass shell have good anti-corrosion, insulation and mechanical properties. Therefore, it works hard to be outside steel jacket of air and water erosion. As long as internal quality pipeline deal, according to foreign materials, the service life of high temperature prefabricated buried pipe insulation up to 50 years, than the traditional trench laying, overhead laying three to four times higher service life.
4, small footprint, and fast construction, favorable environmental protection.
Buried heating pipe does not require masonry massive trench, simply pipe insulation were buried underground, 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 pipe trenching parallel processing and on-site, just live joints, can shorten the duration of about 50%.
High temperature prefabricated buried pipe insulation
5, safety.
In addition to Chinese and foreign production of high temperature prefabricated buried pipe insulation, has a leakage alarm line, once the pipeline leakage occurs somewhere through the police line conduction pipe insulation seepage can show on a dedicated instrumentation, accurate leaks the location and extent of the size of the leak in order to inform the staff dealt with promptly seized seepage leaking pipe, ensure the safe operation of heating pipe network.
In short, the high temperature prefabricated buried pipe insulation not only has the traditional trench and overhead laying pipeline incomparable advanced technology, practical performance, but also has significant social and economic benefits, but also a powerful heating energy-saving measures. Use buried heating pipe technology, marking China heating pipes technological development has entered a new starting point. With the further improvement and development of this advanced technology, the heating pipes buried trench and replace overhead imperative.
According to an estimate, double control heating pipes, under normal circumstances can be reduced to 25% of project cost (fiberglass protective layer) and 10% (high-density polyethylene protective layer) around.
2, low heat loss and save energy.
High temperature prefabricated buried pipe insulation
Its thermal conductivity is: λ = 0.013-0.03kcal / m · h · oC, much lower than other previous conventional pipe insulation materials, insulation effect increased 4 to 9 fold. Further water absorption is very low, about 0.2kg / m2. The reason is due to low water absorption rate of closed-cell polyurethane foam about 92%. Low thermal conductivity and low water absorption, together with insulation and a waterproof good performance of high-density polyethylene or fiberglass protective shell, has changed the traditional trench laying heating pipes status "wearing wet jacket", greatly reducing the heating pipes overall heat loss, heat 2% net heat loss, less than 10% of international standards.
3, anti-corrosion, insulation performance, long service life.
Because of the high temperature prefabricated buried pipe insulation polyurethane rigid foam insulation layer intimately bonded in the steel skin, cut off from air and water infiltration, can play a good anti-corrosion effect. While its foaming holes are closed, water absorption is small. High density polyethylene shell, fiberglass shell have good anti-corrosion, insulation and mechanical properties. Therefore, it works hard to be outside steel jacket of air and water erosion. As long as internal quality pipeline deal, according to foreign materials, the service life of high temperature prefabricated buried pipe insulation up to 50 years, than the traditional trench laying, overhead laying three to four times higher service life.
4, small footprint, and fast construction, favorable environmental protection.
Buried heating pipe does not require masonry massive trench, simply pipe insulation were buried underground, 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 pipe trenching parallel processing and on-site, just live joints, can shorten the duration of about 50%.
High temperature prefabricated buried pipe insulation
5, safety.
In addition to Chinese and foreign production of high temperature prefabricated buried pipe insulation, has a leakage alarm line, once the pipeline leakage occurs somewhere through the police line conduction pipe insulation seepage can show on a dedicated instrumentation, accurate leaks the location and extent of the size of the leak in order to inform the staff dealt with promptly seized seepage leaking pipe, ensure the safe operation of heating pipe network.
In short, the high temperature prefabricated buried pipe insulation not only has the traditional trench and overhead laying pipeline incomparable advanced technology, practical performance, but also has significant social and economic benefits, but also a powerful heating energy-saving measures. Use buried heating pipe technology, marking China heating pipes technological development has entered a new starting point. With the further improvement and development of this advanced technology, the heating pipes buried trench and replace overhead imperative.