黑夹克直埋保温钢管厂家聚氨酯直埋保温管是一种保温性能好，加平安牢靠，工程造价低的直埋预制保温管。
The polyurethane direct-buried insulating pipe manufacturer of black jacket direct-buried insulating pipe is a kind of direct-buried prefabricated insulating pipe with good thermal insulation performance, safety and reliability, and low cost.
直埋保温管不只具有传统地沟和架空敷设管道难以比较的技术、适用性能，而且还具有显著的社会效益和经济效益，也是供热的有力措施。
Direct buried insulating pipe not only has advanced technology and applicability which is difficult to compare with traditional trench and overhead pipeline laying, but also has remarkable social and economic benefits. It is also a powerful measure of heating energy saving.
(1)聚氨酯保温钢管工作钢管：依据保送介质的技术请求分别采用有缝钢管、无缝钢管、双面埋弧螺旋焊接钢管。
(1) Polyurethane insulating steel pipe working pipe: According to the technical requirements of delivery medium, seamless steel pipe, double-sided submerged arc spiral welded steel pipe are used respectively.
(2)聚氨酯保温钢管保温层：采用硬质聚氨酯泡沫塑料。
(2) Polyurethane insulation pipe insulation layer: rigid polyurethane foam plastic.
直埋保温钢管厂家
Manufacturer of Directly Buried Insulating Steel Pipe
(3)聚氨酯保温钢管维护壳：采用高密度聚乙烯或玻璃钢。
(3) Polyurethane insulating steel pipe maintenance shell: using high density polyethylene or FRP.
(4)聚氨酯保温钢管渗漏报警线：制造高温预制直埋保温管时，在靠近钢管的保温层中，埋设有报警线，一旦管道某处发作渗漏，经过警报线的传导，便可在专用检测仪表上报警并显现出漏水的精确位置和渗漏水平的大小，以便通知检修人员疾速处置漏水的管段，保证热网平安运转。
(4) Leakage alarm line for polyurethane insulating steel pipes: When manufacturing high temperature prefabricated directly buried insulating pipes, an alarm line is embedded in the insulating layer near the steel pipes. Once leakage occurs somewhere in the pipeline and is transmitted by the alarm line, it can alarm on the special detection instrument and show the exact position and level of leakage, so as to inform the maintenance personnel to quickly dispose of the leaky pipe section and ensure that The heat supply network operates safely.
聚氨酯保温钢管保温层：维护外钢管防止腐蚀物腐蚀钢管，延长钢管运用寿命;外护钢管:维护保温层免受公开水腐蚀，支撑工作管并能接受一定的外部荷载;聚氨酯泡沫层:保证介质温度，保证外护管外表坚持常温;阻隔、反射层:保证有机泡沫资料不进入无机硬质耐高温层；反射耐高温层局部热。聚氨酯保温管在构造上具有下列特性：
Polyurethane insulation steel pipe insulation: maintenance of external steel pipe to prevent corrosion corrosion steel pipe, prolong the service life of steel pipe; external protection steel pipe: maintain insulation layer from open water corrosion, support the work pipe and can accept certain external load; polyurethane foam layer: ensure the medium temperature, ensure the external tube surface adhere to normal temperature; barrier, reflective layer: ensure that the organic foam data does not enter the inorganic hard and high resistance. Temperature layer; Reflects local heat of high temperature resistant layer. Polyurethane insulating pipes have the following structural characteristics:
1、采用固定在内工作钢管上的活动支架和外套管内壁摩擦，保温资料跟随工作钢管一同活动，不会呈现保温资料的机械磨损、粉化。
1. The movable bracket fixed on the inner working steel pipe and the inner wall friction of the outer sleeve are adopted. The thermal insulation data will follow the working steel pipe and will not show the mechanical wear and pulverization of the thermal insulation data.
2、外套钢管强度高、密封性能好，可有效地防水、抗渗。
2. The coated steel pipe has high strength and good sealing performance, which can effectively waterproof and impermeable.
3、外套钢管的外壁采用防腐处置，使外套钢管的防腐层寿命在20年以上。
3. The outer wall of the coated steel pipe is treated with high-quality anticorrosive treatment, so that the life of the anticorrosive layer of the coated steel pipe is longer than 20 years.
4、工作钢管的保温层选用保温资料，保温效果好。
4. The insulation layer of the working steel pipe is made of high-quality insulation materials, and the insulation effect is good.
5、工作钢管保温层与外套钢管之间留有10~20mm左右的间隙，既可直到进一步保温的作用。又是直埋管道极为通畅的排潮通道，使排潮管真正起到及时排潮的作用，同时起到信号管的作用；或将其抽成低真空，可更有效地保温并降低外套管内壁腐蚀聚氨酯保温钢管工作负管滚动支架采用特种低热资料制成，与钢材的摩擦系数为0.1左右，管道运转时摩擦阻力较小。工作钢管的固定支架，滚动支架与工作钢管的衔接采用特别设计，可有效地避免管道热桥的产生。
5. There is a gap of about 10-20 mm between the insulation layer of the working steel pipe and the outer steel pipe, which can be used for further insulation. It is also a very smooth channel for the direct buried pipeline to drain the tide in time and signal tube at the same time; or it can be pumped into a low vacuum, which can more effectively insulate and reduce the corrosion of the inner wall of the outer sleeve, polyurethane thermal insulation pipe working negative tube rolling support is made of special low-heat data, the friction coefficient with steel is about 0.1, and the friction resistance when the pipeline is running. The force is small. Fixed bracket of working steel pipe, rolling bracket and connection of working steel pipe are specially designed, which can effectively avoid the generation of pipeline hot bridge.
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