High temperature prefabricated directly buried insulation pipe is a kind of directly buried prefabricated insulation pipe with good thermal insulation performance, safe and reliable, and low engineering cost. It can effectively deal with the heat preservation, sliding smoothness and waterproof of exposed pipe end of prefabricated directly buried insulation pipe for urban central heating at medium and high temperature. High temperature prefabricated directly buried insulation pipe not only has the advanced technology and practical performance that traditional trench and overhead laying pipeline are difficult to compare, but also has significant social and economic benefits, which is also a powerful measure of heating energy saving.

高温预制直埋保温管采用直埋供热管道技术，标志着供热管道技术开展曾经进入了新的起点。聚氨酯直埋保温管广泛用于液体、气体的输送管网，化工管道保温工程石油、化工、集中供热热网、空调通风管道、市政工程等。高温预制直埋保温管是一种保温性能好，加可靠，工程造价低的直埋预制保温管。有效的了城镇集中供热中130℃－600℃高温输热用预制直埋保温管的保温、滑动润滑和管端的防水问。

The technology of directly buried heat supply pipeline is adopted for high temperature prefabricated directly buried thermal insulation pipe, which indicates that the development of heat supply pipeline technology has entered a new starting point. Polyurethane directly buried insulation pipe is widely used in liquid and gas transmission network, chemical pipeline insulation engineering, petroleum, chemical, central heating network, air conditioning and ventilation pipeline, municipal engineering, etc. High temperature prefabricated 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 pipe end waterproof of prefabricated directly buried insulation pipe for 130 ℃ - 600 ℃ high temperature heat transmission in urban central heating.

因此大大减少了工程占地，有利于环境保护，减少土方开挖量约50%以上，减少土建砌筑和混凝土量90%。同时，保温管施工和现场挖沟平行进行，只需现场接头，可以缩短工期约50%以上。保温性能好，热损失仅为传统管材的25%，长期运行可节约大量能源，显著降低能源成本。具有很强的防水和耐腐蚀能力，不需附设管沟，可直接埋入地下或水中，施工简便迅速，综合造价低。在低温条件下也具有良好的耐腐蚀和耐冲击性，可直接埋入地下冻土。

Therefore, the land occupation of the project is greatly reduced, which is conducive to environmental protection, the amount of earthwork excavation is reduced by more than 50%, and the amount of civil masonry and concrete is reduced by 90%. At the same time, the insulation pipe construction and field trenching are carried out in parallel, and the construction period can be shortened by more than 50% with only on-site joint. The heat loss is only 25% of that of the traditional pipe material. The long-term operation can save a lot of energy and significantly reduce the energy cost. It has strong waterproof and corrosion resistance, and can be directly buried in the ground or water without pipe trench. The construction is simple and rapid, and the comprehensive cost is low. It also has good corrosion resistance and impact resistance at low temperature, and can be directly buried in the underground frozen soil.

使用寿命可达30-50年。正确的安装和使用可使管网维修费用极低。可设置报警系统，自动检测管网渗漏故障，准确指示故障位置并自动报警。直埋预制保温管保温钢管又称钢套钢保温钢管,因为超细玻璃棉的耐温性能,因此钢套钢保温钢管主要应用于蒸汽供暖保温.钢套钢玻璃棉保温钢管选用的玻璃棉是用独有的离心技。

The service life can reach 30-50 years. Correct installation and use can make the maintenance cost of pipe network extremely low. Alarm system can be set to automatically detect the leakage fault of pipe network, accurately indicate the fault location and alarm automatically. Directly buried prefabricated thermal insulation pipe is also called steel jacket steel insulation steel pipe. Because of the temperature resistance of ultra-fine glass wool, steel sleeve steel insulation steel pipe is mainly used for steam heating and insulation. The glass wool used in steel sleeve steel glass wool insulation steel pipe is unique centrifugal technology.