济南保温管的分类
Classification of Insulation Pipes in Jinan
钢套钢复合保温管保温构造根据滑动方式不同可分爲两大类：
According to different sliding modes, the thermal insulation structure of steel-jacketed composite insulating pipe can be divided into two categories:
1、内滑动式：保温构造由任务钢管、硅酸铝、减阻层、微孔硅酸钙、隔热层、不锈钢紧固钢带、铝箔反射层、聚氨酯保温层、外套钢管、外防腐层组成。内滑动型保温钢管是由保送介质的钢管+复合硅酸盐或微孔硅酸钙+硬质聚氨酯泡沫塑料+外套钢管+玻璃钢壳防腐维护层构造构成。各种管件节点保温处置技术成熟，质量牢靠。
1. Inner sliding type: Thermal insulation structure is composed of task steel pipe, aluminium silicate, drag reduction layer, micro-porous calcium silicate, thermal insulation layer, stainless steel fastening strip, aluminium foil reflective layer, polyurethane thermal insulation layer, coated steel pipe and external anti-corrosion layer. The inner sliding insulation steel pipe is composed of steel pipe with delivery medium, composite silicate or micro-porous calcium silicate, rigid polyurethane foam plastic, coated steel pipe and FRP shell anti-corrosion maintenance layer. All kinds of tubular joint heat preservation treatment technology is mature and the quality is reliable.
2、外滑动式：保温构造由任务钢管、玻璃棉保温隔热层、铝箔反射层、不锈钢紧固钢带、滑动导向支架、空气保温层、外护钢管、外防腐层组成。
2. External sliding type: thermal insulation structure consists of task steel pipe, glass wool thermal insulation layer, aluminum foil reflective layer, stainless steel fastening belt, sliding guide bracket, air thermal insulation layer, external steel pipe and external anti-corrosion layer.
聚氨酯保温管从里到外分三层构造：
Polyurethane insulating pipe has three layers from inside to outside.
一层：任务钢管层
Layer 1: Task Steel Tube Layer
依据设计和客户的要求普通选用无缝钢管、螺旋钢管和直缝钢管。钢管外表经过的抛丸除锈工艺处置后，钢管除锈等级可达GB8923-1988规范中的Sa2级，外表粗糙度可达GB6060.5-88规范中R=12.5微米。
Seamless steel pipe, spiral steel pipe and straight seam steel pipe are generally selected according to design and customer requirements. After treatment by advanced shot peening rust removal process, the steel tube rust removal grade can reach Sa2 level in GB8923-1988 specification, and the surface roughness can reach R=12.5 micron in GB6060.5-88 specification.
第二层：聚氨酯保温层：
Second layer: polyurethane insulation layer:
用高压发泡机在钢管与外护层之间构成的空腔中一次性注入硬质聚氨酯泡沫塑料原液而成，即俗称的“管中管发泡”。
High-pressure foaming machine is used to inject rigid polyurethane foam plastics into the cavity formed between the steel pipe and the outer sheath at one time, which is commonly known as "tube-in-tube foaming".
第三层：高密度聚乙烯维护层：
Layer 3: High Density Polyethylene Maintenance Layer:
预制成一定壁厚的黑色或黄色聚乙烯塑料管材。其作用一是维护聚氨酯保温层免遭机械硬物毁坏，二是防腐、防水。
Prefabricated black or yellow polyethylene plastic pipes with a certain wall thickness. Its function is to maintain the polyurethane insulation layer from the destruction of mechanical hard objects, and the second is anti-corrosion and waterproof.
In summary, all the above-mentioned Shandong Hipper Pipe Technology Development Co., Ltd. provides, want to know more about Jinan insulation pipe knowledge, welcome to pay attention to our website: http://www.sdhpgy.com Thank you for your support!
