Shizhong District Insulated Pipe Production

厚度：

2、3、4

芯材：

聚氨酯

形状：

圆形

Steel pipe type: Seamless steel pipes are used for pipe diameters of and below, and spiral welded pipes are used for pipe diameters and above. Material: seamless pipes are steel, and spiral welded pipes are

Execution standards: Seamless pipe B, spiral welded pipe B< br/> Steel casing


Steel pipe type: spiral welded pipe

Material:

Execution standard: spiral welded pipe B
Centrifugal glass wool


Density:
㎏/

Average fiber diameter:

Slag ball content: %< br />
Moisture content: %

Nonflammability: [banned words]

Corrosiveness: None

Thermal conductivity (℃ ): / (℃)

Execution standard: B
Polyurethane insulation layer


Density: ㎏/

Average Pore diameter:

Compressive strength (% deformation):

Water absorption (boiling water): %

Thermal conductivity (℃): / (℃)

Execution standard: /
Calcium silicate


Density: ㎏/

Thermal conductivity: /(℃)

Compressive strength:

Flexural strength:

Using temperature: ℃

Features: The product is non-toxic and non-toxic Harmless, non-irritating, non-polluting and non-flammable
Fiber-winding reinforced fiberglass


Production process: Fiber-reinforced thermosetting resin pipe winding process

Reinforcement material: None Alkali untwisted glass fiber

Resin: o-phenylene or iso-phenylene unsaturated polyester resin

Reference standard: ,/

Resin temperature resistance: Ortho-phenylene type ℃, m-phenylene type ℃

FRP outer protective tube density: ~㎏/

Hoop bending modulus: ~

Shaft Bending and tensile modulus: ~

Poisson's ratio: ~

Thermal expansion coefficient: (/℃)

Node processing:


Our company's direct buried steam pipeline insulation products have various specifications, and can produce related supporting connectors and installation accessories, as well as internal fixed drainage systems, tee elbow moisture drainage systems used in directly buried pipelines, etc. .
Internal fixation


Adopt a unique internal fixation structure, using three layers of steel flanges and two layers of asbestos flanges to maintain relative fixation between the inner and outer steel pipes, high temperature insulation materials It effectively prevents thermal bridges and eliminates the need for reinforced concrete structures during construction. The relative fixation of the inner and outer steel flanges can withstand sufficient axial thrust according to the design requirements, which can fully ensure the safe operation of the entire pipeline.
Compensator


When using a bellows compensator, it is recommended to be directly buried together with the pipeline. In order to prevent corrosion of the bellows compensator caused by heat dissipation and water penetration, it should be done Insulated and waterproof sealing structure. In order to maintain the rationality of the thrust force of 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 the axial thrust and extend the service life of the compensator.
Drainage system


The drain system is set at the drain port of the compensator or installed as close to the internal fixation as possible. If the drain system is set up on a pipe, it should be installed on the pipe first. Install a water collecting tank, then lead it out with a metal hose, and return it to the drainage operation well. There are two branch pipes, one for starting drainage and one for regular drainage. Frequent drainage is controlled by a thermodynamic drain valve, and then introduced into a drainage well or inspection well. It is recommended that the operation well and drainage well be separated to facilitate operation and avoid danger.
Valves


It is recommended that steam pipeline valves be installed in valve wells to facilitate operation and maintenance. At the same time, when installing the valve, corrugated caps should be added to the pipes at both ends of the valve to seal the insulation layer to prevent water vapor in the well from entering the insulation layer.
Elbow


It is protected by steel casing on the outside and insulated on the inside. According to the compensation amount of the elbow during pipeline design, the diameter of the outer sheathing pipe should be increased accordingly to ensure that there is still sufficient insulation thickness at the elbow after expansion and deformation. The insulation materials should also be changed accordingly, and high-rebound soft insulation materials should be selected. Thermal insulation elbows are also made into thermal insulation prefabricated parts in precast factories.
Tee reducer


Tee reducer is generally used at the branch of the steam pipeline insulation main line to provide users with a necessary means of heat source. The processing of the above nodes Our company's products have unique technical processing experience and can provide users with the best suggestions. Generally, fixed points are set at the tees or fours to ensure the stability of the pipeline. In addition, they are set on the branch lines. Natural compensation is used to reduce the thrust on the trunk line. The tee reducer can be insulated on site or made into prefabricated parts. According to the displacement given in the design, the T-shaped steel jacket can be appropriately enlarged and the insulation thickness in the direction of the branch pipe can be increased.