Steel sleeved steel direct buried anti-corrosion and insulated steel pipe manufacturer

Hebei Cangzhou Tianze Co., Ltd., a manufacturer of steel-sleeved direct-buried anti-corrosion and thermal insulation steel pipes, is also constantly promoting our development and progress. The development of our company cannot be separated from the support and help of our customers. We would like to express our sincere gratitude and gratitude to everyone. As a company specializing in pipeline anti-corrosion, we know that when customers choose suppliers, they not only choose product quality, but also choose service guarantees and choose long-term partners. We deeply know that for customers to choose us, verbal promises alone are not enough. We need sustained efforts to ensure service quality and insist on improving services to make them more professional and sincere. We need to constantly communicate with customers to make our products and services better meet everyone's needs. We maintain the company's long-term and healthy development so that we can become customers' chosen and long-term trusted friends. Prefabricated polyurethane directly buried insulated pipes are mainly composed of four parts
The working steel pipes are made of seamed steel pipes according to the technical requirements of the transmission medium. Double-sided submerged arc spiral welded steel pipe.
The insulation layer is made of rigid polyurethane foam.
The protective shell is made of high-density polyethylene or fiberglass.
Leakage alarm line When manufacturing prefabricated polyurethane direct-buried insulation pipes, an alarm line is buried in the insulation layer close to the steel pipe. Once leakage occurs somewhere in the pipe, an alarm will be sent to the special detection instrument and displayed through the conduction of the alarm line. The exact location of the leakage and the extent of the leakage can be used to notify maintenance personnel to quickly deal with the leaking pipe section to ensure the safe operation of the heating network
The structure of directly buried steel-sheathed steel insulation pipes is divided into two types: internal sliding type and external sliding type based on different sliding methods. kind.
The internal sliding insulation structure consists of a working steel pipe, an aluminum silicate drag reduction layer, a microporous calcium silicate insulation layer, a stainless steel fastening steel strip, an aluminum foil reflective layer, a polyurethane insulation layer, and an outer anti-corrosion layer on the steel pipe.
The external sliding insulation structure is composed of a working steel pipe, a glass wool thermal insulation layer, an aluminum foil reflective layer, a stainless steel fastening belt, a sliding guide bracket, an air insulation layer, an outer protective steel pipe and an outer anti-corrosion layer.
Our company's directly buried insulated pipe products have various specifications and can produce related supporting connectors and installation accessories, as well as internally fixed drainage systems, tee elbow moisture drainage systems, etc. used in directly buried pipes. A unique internal fixing structure is used for the internal fixation of steel-sheathed steel direct-buried steam insulation pipes. Three-layer steel flanges and two-layer asbestos flanges are used to maintain relative fixation between the inner and outer steel pipes. High-temperature insulation materials effectively prevent thermal bridges from occurring during construction. No reinforced concrete structures are required during construction. . The relative fixation of the inner and outer steel flanges can withstand sufficient axial thrust according to the design requirements to fully ensure the safe operation of the entire pipeline. When using a bellows compensator for a steel-sheathed steel direct-buried steam insulation pipe compensator, it is recommended that it be directly buried together with the pipe. To prevent corrosion of the bellows compensator caused by heat dissipation and water penetration, it should be made into an insulated and waterproof sealing structure. In order to maintain the rationality of the thrust force on the internal fixation and the stability of the compensator during pipeline operation, it is recommended that the compensator be symmetrically arranged at both ends of the internal fixation and add a guide bracket at each end of the compensator to ensure that the compensator only bears axial thrust and extends the compensation the service life of the device. There are multiple sets of production lines for insulated steel pipes and pipe fittings that can design and produce various structural forms of steel sleeved steel steam directly buried insulated pipes, steam directly buried steel sleeved steel insulated pipes, prefabricated steel sleeved steel directly buried insulated pipes, steel sleeved steel directly buried insulated pipes Buried insulated pipe steel-sheathed insulated pipe is composed of an anti-corrosion outer steel pipe for transporting the medium and ultra-fine glass wool filled between the steel pipe and the outer steel pipe. It can also be made of graphite calcium silicate tile shell and filled polyurethane foam. Steel casing (steel casing steel) burial technology is a new waterproof, leakage-proof, seepage-proof, pressure-proof and fully enclosed burial technology. It is a major breakthrough in the use of direct burial laying technology in areas with high groundwater levels. The primary issue of the protection pipe for directly buried pipelines is the reliability of tight waterproofing. In addition, it must have good mechanical strength. Due to its high strength, the steel casing is welded to connect the waterproof sealing performance, which has very high reliability. In addition, its high temperature resistance is also inferior to other external protection pipes. Incomparable. In areas with high groundwater levels, a solid and airtight steel pipe shell is used as the outer protective layer to ensure that groundwater does not affect the normal operation of directly buried steam pipelines.