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.
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) 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) Polyurethane insulation pipe insulation layer: rigid polyurethane foam plastic.
Manufacturer of Directly Buried Insulating Steel Pipe
(3) Polyurethane insulating steel pipe maintenance shell: using high density polyethylene or FRP.
(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.
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. 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. The coated steel pipe has high strength and good sealing performance, which can effectively waterproof and impermeable.
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. The insulation layer of the working steel pipe is made of high-quality insulation materials, and the insulation effect is good.
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.
This article is published by the black jacket straight seam steel pipe finishing, do you know about these contents? For more information, please click: https://www.sdhpgy.com, we will have more wonderful content for you to see.
