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"Jingdezhen Xinlong Risheng Polyurethane Rigid Foam Prefabricated Pipe DN200/219" Parameter Description
| In stock: | No | Authentication: | ISO9001-2000 |
| Product Category: | Insulation Pipe | Material: | Polyurethane |
| Pattern: | Microporous | Shape: | Surface Convex |
| Scope of application: | Residential district heating | Thermal conductivity (room temperature): | 0.03W/（m·k） |
| Brand: | Xinlong Risheng | Use temperature: | Below 200 degrees Celsius |
| Core: | Seamless Steel Pipe | Compressive Strength: | 262 |
| Bending Strength: | 190 | Elongation at break: | 19 |
| Low temperature bending: | 350 | Grade: | GB |
| Model: | Dn150/165 | Specifications: | GB/t29047-2012 |
| Trademark: | Xinjinlong | Packaging: | none |
| Patent Classification: | none | Patent Number: | none |
| Density: | 60 | Thermal conductivity: | 0.0333 |
| Stretch: | 19 | Yield: | 268568 |
Detailed introduction of "Jingdezhen Xinlong Risheng Polyurethane Rigid Foam Prefabricated Pipe DN200/219"
Jingdezhen Xinlong Risheng Polyurethane Rigid Foam Prefabricated Pipe DN200/219 Inventory of the Advantages of Directly Buried Insulation Pipes for Heating Germany, Japan, etc., began to research and apply "directly buried thermal insulation pipe heating" pipes to replace the traditional trench emblem installation method as early as 20 or 30 years ago, and now it has become a relatively mature and perfect technology. In Denmark and Finland, more than 90% of the heating pipes in the country are directly buried. Reykjavik, the capital of Iceland with a population of only 100,000, has a total length of 591 km using directly buried thermal insulation pipes for heating. Denmark, Germany, Sweden, Italy, Finland, Japan, etc. have one or several factories specializing in the production of directly buried thermal insulation pipes for heating. Theoretical research and product development develop rapidly. The leakage detection system is adopted, which strengthens the reliability of the heating of directly buried insulation pipes! The following are some of the advantages of directly buried heat insulation pipes: : Low project cost According to the calculation of relevant departments and the statistics of some units, directly buried heat insulation pipes can reduce the project cost by 25% in general (using Borui Steel as protective layer) and 10% (using high-density poly as protective layer). : Low heat loss and energy saving As the direct buried insulation pipe adopts polyurethane rigid foam as the insulation material, its thermal conductivity is much lower than other commonly used pipe insulation materials in the past. : Low thermal conductivity and low water absorption rate, coupled with the external insulation layer of the directly buried thermal insulation pipe, and the high-density polymer or glass fiber reinforced plastic protective shell with good waterproof performance on the outside, which overcomes the traditional trench laying heating pipeline "wearing wet cotton jacket" situation, greatly reducing the the overall heat loss of the heating pipe. According to the side test of Tianjin University Architectural Design and Research Institute, the heat loss of "Peiju Plastic Directly Buried Heating Pipeline" can be reduced by about 40%-60% compared with the heat loss of pipes insulated by other thermal insulation materials. : Anti-corrosion, good edge performance and long service life The direct-buried thermal insulation pipe can play a good anti-corrosion effect because the polyurethane rigid foam protection layer is tightly withered on the outer skin of the steel pipe, which prevents the infiltration of air and water. At the same time, its foaming pores are all small round pores that are not connected to each other, and the closed cell rate is very high, so its water absorption is very small. The high-density poly shell and the glass steel shell have good anti-corrosion, edge and mechanical properties, so the outer skin of the working steel pipe is difficult to be eroded by the outside air and water. As long as the internal water quality of the pipeline is well treated, the service life of the thermal insulation pipeline is introduced according to foreign data. up to 50 years or more. The service life is 3-4 times longer than that of traditional trench-laying heating pipes. , Small footprint, fast construction, and environmental protection. The pipelines directly buried thermal insulation pipes do not need to build huge trenches, and the thermal insulation pipes only need to be buried underground. Therefore, the land occupation of the project is greatly reduced, and the amount of earthwork excavation is reduced by more than 50 latitudes; the amount of civil masonry and concrete is reduced by 90. At the same time, the processing of thermal insulation pipes and on-site trenching are carried out in parallel, only on-site joints are required, so the construction period can be shortened by about 50 %above. Because there is no need to transport a large amount of building materials such as bricks, ash, stone and earthwork, it avoids the emission of waste gas and dust during transportation, which is beneficial to urban environmental protection. In a word, the directly buried thermal insulation pipe heating pipeline not only has the technical performance that the traditional trench laying heating pipeline is incomparable to, but also has significant social and economic benefits. It is also one of the powerful measures for heating energy saving. The use of directly buried thermal insulation pipe heating pipeline technology marks that the development of heating pipeline technology in my country has entered a new starting point. With the further improvement and development of this technology, it is imperative to directly bury heating pipes instead of trench burials.
