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钢套钢保温管的使用寿命怎么把握?

来源:http://www.sdhpgy.com 日期:2020-10-15 发布人:haipo
钢套钢保温管由输送介质的,工作钢管、泡沫保温层、聚乙烯塑料外护管,通过设备依次向外结合而成。聚氨酯保温层其作用一是防水,二是保温,架空预制钢套钢蒸汽保温管备注,三是支撑热网自重。当输送介质温度为:-50℃—120℃时,钢套钢蒸汽保温管,选用硬质聚氨基脲酸酯泡沫塑料做保温层。
The steel sleeve steel insulation pipe is made up of conveying medium, working steel pipe, foam insulation layer and polyethylene plastic external protection pipe, and is sequentially integrated outwardly through the equipment. Polyurethane insulation layer has the functions of waterproof and thermal insulation. It can support the self weight of heat supply network. When the conveying medium temperature is -50 - 120 - C, the steel sleeve steel steam insulation pipe is made of rigid polyurethane urea foam as insulation layer.
塑料管材,其作用一是保护聚氨酯保温层免遭机械硬物破坏,二是防腐防水。
Plastic pipe, its role is to protect the polyurethane insulation layer from mechanical damage, the other is anti-corrosion and waterproof.
聚氨酯保温钢管厂家
钢套钢直埋保温管是一种保温性能好,加安全可靠,工程造价低的直埋预制保温管。有效的解决了城镇集中供热中130℃-600℃高温输热用预制直埋保温管的保温、滑动润滑和裸露管端的防水问题。钢套钢保温管不仅具有传统地沟和架空敷设管道难以比拟的先进技术、实用性能,而且还具有显著的社会效益和经济效益,也是供热节能的有力措施。
The steel sleeve steel directly buried insulation pipe is a kind of directly buried prefabricated insulation pipe with good thermal insulation performance, safety and reliability, and low engineering cost. It can effectively solve the problems of heat preservation, sliding lubrication and waterproof of exposed pipe end for 130 ℃ - 600 ℃ high temperature heat transfer in urban central heating. Steel insulated steel pipe not only has the advanced technology and practical performance that traditional trench and overhead laying pipeline can't match, but also has remarkable social and economic benefits, which is also a powerful measure of heating and energy saving.
钢套钢保温管由工作钢管、保温层、滚动导向管托、外套管(钢管)、防腐层组成,保温材料捆扎在工作钢管上,依靠滚动导向管托在外套管内整体式热膨胀移动,故不损坏保温层,固定支架为内置式固定支架,无须原先“三通式固定支架”的庞大的钢筋混凝土支墩,是理想的蒸汽管敷设方式。经多年使用实践中和有关检测检测使用寿命可达三十年以上。
The steel insulated steel pipe is composed of working steel pipe, insulation layer, rolling guide pipe bracket, outer sleeve (steel pipe) and anti-corrosion layer. The thermal insulation material is bound on the working steel pipe and moves by integral thermal expansion in the outer sleeve supported by the rolling guide pipe. Therefore, the insulation layer is not damaged. The fixed support is built-in fixed support instead of the huge reinforced concrete buttress of the original "three-way fixed support" It is an ideal way to lay steam pipe. After many years of practice and relevant testing centers, the service life can reach more than 30 years.
保温层保温材料选用憎水型复合硅酸盐管壳或XN-3硅酸铝(防潮陶瓷制品)保温管壳,亦可应客户要求选用其它材质的保温材料。保温材料错面双层错缝捆扎在工作钢管上连成一体,减少了热损失,与钢套管不发生面摩擦,延长了保温层的使用寿命,其厚度随介质温度而定。
Hydrophobic composite silicate pipe shell or xn-3 aluminum silicate (moisture-proof ceramic products) insulation pipe shell shall be selected as thermal insulation material for thermal insulation layer, and other materials can also be selected according to customer requirements. The thermal insulation material is bound on the working steel pipe to reduce the heat loss and avoid friction with the steel sleeve, thus prolonging the service life of the insulation layer. The thickness of the insulation layer depends on the temperature of the medium.
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