- 规格型号:
- 齐全
: >FRP insulated pipes
: >Glass fiber reinforced plastic outer sheath Steam directly buried prefabricated insulated pipe
Its structure is similar to the internal sliding structure of steel sleeve
The structural form of fiberglass outer sheathing or high-density polyethylene outer sheathing, because there are many structural forms in actual construction Disadvantages, especially in the node part and the on-site interface part, all require manual operation and cannot meet the design and construction requirements, so its use is not recommended. However, when formulating and formulating, some experts and manufacturers mentioned the use of glass fiber reinforced outer sheath. Steam pipes, when the steam temperature is not very high, are generally considered to be at degrees Celsius
:>Production process of polyurethane insulation pipes
Polyurethane foam insulation pipes are widely used in applications due to their long-term corrosion resistance and anti-aging characteristics. People welcome it, so there is a huge demand market, and therefore there is a huge production amount requirement for the production of polyurethane insulation pipes. For the production and processing of polyurethane insulation pipes, it needs to be processed according to specific uses and structures. For the implementation of insulation layer with inner tube and outer tube, polyurethane foam insulation pipe is usually filled with foaming slurry directly between the two tubes and foamed in one step.
Before pouring the slurry, the inner tube and the outer tube must use appropriate equipment to maintain good concentricity. The lower part must be sealed tightly, and polyurethane foam insulation pipes must be used to prevent slurry leakage. Depending on the flow state and foaming speed of the slurry, the insulation layer with a smaller length can be poured upright, but for most of the insulation layers with a larger length, steel-clad steel steam insulation pipes are often poured in an inclined manner to facilitate the flow of the slurry. and foaming. According to the formula and construction requirements, it can be injected from the upper side or from the lower side. When the pipe fittings are long, the slurry output by the mixing head can be introduced into the lower part of the pipe gap through the conduit, and as the injection volume increases, the conduit can be gradually withdrawn. This method is only applicable to the production of the following ordinary casing insulation layers.
For the construction of insulation layers for large-diameter, long-length casing pipes, due to the influence of factors such as material formula and production site conditions, manufacturers of directly buried insulated pipes usually use the horizontal direct infusion method. As the saying goes, specific methods and specific applications, the processing of polyurethane insulation pipes can only have a high enough use effect if it is processed in a targeted manner, thereby ensuring that its application can reach a satisfactory level.
: >Stacking and storage of pipes
The pipe storage area should be flat, free of debris and water, and should have sufficient carrying capacity.
. Pipes should be placed away from heat sources and should have fire-fighting facilities.
When stacking pipes, pipe pillows must be placed. The width of the pipe pillow should be greater than the height. When storing, pipes of the same type should be placed together. Long pipes should be placed layer by layer starting from the ground. Stacking for a short period of time? You don’t have to put the whole piece on each layer, but the height should not be greater than.
During the storage period of the pipe, both ends of the steel pipe should be sealed. When stored in the open air, they should be covered with felt cloth. Exposure to the sun and rain is prohibited.
: > When hoisting pipes, use a sling with a width larger than that of the pipe.
When loading and unloading, you should handle it with care and avoid bumps.
When unloading or loading cars, vertical lifting should be used. For container loading, forklifts and loaders can be used to cooperate.
, Pipe stacking? It is strictly prohibited to use iron tools to pry or steel wire ropes to directly bind the outer casing during hoisting.