If the direct-buried insulating pipe is damped due to improper care, the moisture in the insulating layer should be swept away by low temperature dehumidification method before blowing and running. Otherwise, the company produces high-temperature composite polyurethane direct-buried pipe, steel-lined steel direct-buried pipe, aluminium silicate tile, board, polyurethane tile and centrifugal glass wool, felt, etc. A variety of anti-corrosion and thermal insulation materials for your choice. For a long time, our products have been widely used in industrial and mining companies, petrochemical companies, urban central heating, pipeline network, residential areas and other areas all over the country, and have been highly praised by users.

Style: It is composed of steel pipe for delivery medium, anti-corrosion coat steel pipe and superfine glass wool filled between steel pipe and coat steel pipe.

Characteristic: The steel pipe is used as the maintenance layer of the steel pipe, which makes the product have the characteristics of high strength, not easy to be damaged and heavy bearing capacity.

All direct-buried insulating pipes except those consumed in China are equipped with leakage alarm lines. Once leakage occurs somewhere in the pipeline and is transmitted by the alarm lines, the leakage of insulating pipes, the exact location of the leakage and the size of the leakage level can be displayed on the special testing instruments, so as to inform the inspectors to quickly dispose of the leakage pipelines and ensure the level of the heating network. Safe operation. At present, leakage alarm line has been set up in domestic thermal insulation pipelines, which needs to be filled in.

In a word, thermal insulation 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. The adoption of directly buried heating pipeline technology marks a new starting point for the development of heating pipeline technology in China.

It can be divided into two categories:

1. Inner sliding type: thermal insulation structure consists of working 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 heat preservation steel pipe is composed of composite silicate or micro-porous calcium silicate rigid polyurethane foam plastic coat of steel pipe with anti-corrosion maintenance layer structure. All kinds of tubular joint heat preservation treatment technology is mature and the quality is reliable.

2. External sliding type: thermal insulation structure consists of working steel pipe, glass wool thermal insulation layer, aluminum foil reflector layer, stainless steel fastening belt, sliding guide bracket, air thermal insulation layer, external steel pipe protection layer and external anti-corrosion layer.

It mainly consists of four parts.

(1) Working steel pipe: According to the technical requirements of delivery medium, seamless steel pipe, double-sided submerged arc spiral welded steel pipe are used respectively.

(2) Insulation layer: rigid polyurethane foam.

(3) Maintenance case: high density polyethylene or glass fiber reinforced plastics.

(4) Leakage alarm line: When manufacturing high-temperature prefabricated directly buried insulating pipe, an alarm line is embedded in the insulating layer near the steel pipe. Once leakage occurs somewhere in the pipeline and is transmitted by the alarm line, the alarm line can be used on the special detection instrument to show the exact position of leakage and the size of leakage level, so as to inform the maintenance personnel to deal with it quickly. Leakage section ensures safe operation of the heat network.

This is the content of the black jacket straight seam steel pipe https://www.sdhpgy.com. Thank you for checking our company's information during your busy schedule. If you want to know more, you are welcome to call for consultation!